Directory
All Online Tools & Calculators
Explore our full directory of 498 browser-based tools. Instant calculations with clear formulas and practical context.
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Absolute Value Calculator
Calculate the absolute value of a number.
Accounts Payable Days Calculator
Estimate the average time a business takes to pay suppliers.
Accounts Receivable Days Calculator
Estimate the average time customers take to pay.
Ad Spend ROI Calculator
Estimate return on advertising spend from revenue and ad spend.
Affiliate Commission Calculator
Calculate affiliate commission from sales value and commission rate.
Affiliate Earnings Calculator
Estimate affiliate earnings from conversions and commission per sale.
Age Calculator
Calculate age from a date of birth.
Age on Date Calculator
Calculate a person
Airtime Budget Calculator
Estimate monthly airtime spending from average daily calls and top-up habits.
Annual Recurring Revenue Calculator
Convert monthly recurring revenue into annual recurring revenue and compare recurring scenarios.
Annual Work Hours Calculator
Calculate annual work hours from weekly hours and working weeks.
Annualized Return Calculator
Convert an investment return into an annualized rate return into an annualized rate
API Error Rate Calculator
Calculate API error rate from failed and total requests.
Appliance Energy Cost Calculator
Estimate the electricity cost of running an appliance for a chosen number of hours.
Appliance Power Cost Calculator
Calculate daily and monthly running cost in Naira for household appliances based on wattage and DISCO tariff.
Appliance Replacement Fund Calculator
Estimate the monthly amount to save for replacing an appliance by a target date.
APR Calculator
Estimate an annualized borrowing cost from interest, fees, principal and loan term.
Assessment Weight Checker
Check whether assignment, test and exam weights add up to a complete course grading scheme.
Asset Turnover Calculator
Measure how efficiently a business uses assets to generate revenue.
Assignment Time Calculator
Estimate time needed to complete an assignment from word count and writing speed.
Attendance Percentage Calculator
Calculate attendance percentage from classes attended and classes held.
Average Basket Size Calculator
Calculate average order value from revenue and order count.
Average Calculator
Calculate the arithmetic mean of a set of numbers.
Average Delivery Distance Calculator
Calculate average delivery distance per order.
Average Delivery Time Calculator
Calculate average delivery time from total delivery hours and completed deliveries.
Average Order Value Calculator
Calculate average revenue per order from total sales and number of completed orders.
Bakery Batch Cost Calculator
Calculate the cost per item produced in a bakery batch.
Baking Pan Conversion Calculator
Scale a recipe when changing the baking pan area.
Bandwidth Utilization Calculator
Calculate bandwidth utilization percentage.
Base64 Encoder & Decoder
Encode or decode Base64 text locally in your browser.
Battery Capacity Calculator
Estimate battery watt-hours needed for a chosen load and backup duration.
Block Count Calculator
Estimate the number of blocks needed for a wall from wall area and block face area.
Block Wall Area Calculator
Calculate wall area from wall length and height.
BMI Calculator
Calculate body mass index from height and weight.
Break Time Calculator
Calculate total break time and net working time from a shift duration and break length.
Break Time Percentage Calculator
Calculate break time as a percentage of a work period.
Break-Even Point Calculator
Find the sales quantity and revenue required to cover fixed costs at a chosen selling price and variable cost.
Break-Even Price Calculator
Calculate the minimum selling price needed to cover fixed and variable costs at a target sales volume.
Brick Count Calculator
Estimate bricks needed from wall area and brick face area.
Brick Quantity Calculator
Estimate brick quantity from wall area and brick coverage.
Budget Variance Calculator
Compare actual spending or revenue with a budget.
Bulk Discount Calculator
Calculate savings and final price for quantity discounts.
Business Days Calculator
Calculate weekdays between two dates.
Business Growth Rate Calculator
Calculate growth between two business figures.
Business Runway Calculator
Estimate how many months a business can operate before cash runs out at its current burn rate.
Cache Hit Rate Calculator
Calculate cache hit rate from hits and total requests.
Carpet Area Calculator
Calculate floor area and estimate carpet required after adding a cutting allowance.
Cart Abandonment Rate Calculator
Calculate the percentage of shopping carts that are abandoned.
Cash Conversion Cycle Calculator
Calculate how long cash is tied up between buying inventory and collecting customer payments.
Cash Flow Calculator
Estimate net cash movement and closing cash from an opening balance, inflows and outflows.
Cash Flow Margin Calculator
Calculate cash flow as a percentage of revenue.
Catering Cost Per Guest Calculator
Calculate catering cost per guest including overhead.
Catering Margin Calculator
Calculate catering profit margin from revenue and cost.
Catering Profit Calculator
Calculate profit from a catering contract.
Cement Bag Quantity Calculator
Estimate cement bags needed from concrete or mortar material weight.
CGPA Calculator
Calculate CGPA from credit units and grade points.
CGPA Target Calculator
Estimate the average GPA needed in remaining credits to reach a target CGPA.
Character Counter
Count characters with or without spaces.
Checkout Completion Rate Calculator
Calculate the percentage of initiated checkouts that complete.
Childcare Monthly Cost Calculator
Estimate monthly childcare spending from fees, transport and extra care costs.
Class Average Calculator
Calculate the arithmetic mean of a set of student scores.
Click-Through Rate Calculator
Calculate CTR from clicks and impressions.
Coefficient of Variation Calculator
Calculate coefficient of variation as a percentage.
Combination Calculator
Calculate the number of combinations where order does not matter.
Commission Calculator
Calculate commission earned from a sale.
Commission Rate Calculator
Calculate commission rate, commission amount, or sales value.
Compost Application Calculator
Estimate compost needed from field area and application rate.
Compound Interest Calculator
Estimate future value from an initial amount, recurring contribution, interest rate and compounding frequency.
Concrete Cost Per Cubic Metre Calculator
Calculate average concrete cost per cubic metre.
Concrete Material Estimator
Estimate cement, sand and aggregate quantities from concrete volume using user-supplied factors.
Concrete Volume Calculator
Calculate concrete volume from length, width and depth.
Conditional Probability Calculator
Calculate conditional probability from a joint event and conditioning event.
Construction Labour Cost Calculator
Estimate construction labour cost from workers, days and daily rate.
Construction Material Budget Calculator
Estimate a material budget from quantity and unit price.
Construction Material Cost Per Unit Calculator
Calculate average construction material cost per unit purchased.
Construction Material Waste Cost Calculator
Estimate the value of material lost to construction waste.
Construction Wastage Calculator
Add a wastage allowance to a base quantity of construction material.
Contribution Margin Calculator
Calculate contribution margin per unit and contribution margin ratio from price and variable cost.
Conversion Rate Calculator
Calculate conversion rate from visitors or leads and completed actions.
Cooking Gas Cost Calculator
Estimate the cost of cooking gas used from cylinder price, starting weight and remaining weight.
Cooking Gas Refill Calculator
Estimate LPG refill cost from kilograms needed and the price per kilogram.
Cost Per Acquisition Calculator
Calculate marketing cost per acquired customer.
Cost Per Click Calculator
Calculate average advertising cost per click.
Cost Per Lead Calculator
Calculate average cost per lead from marketing spend and leads.
Cost Per Thousand Impressions Calculator
Calculate CPM from advertising spend and impressions.
Cost Per Unit Calculator
Calculate average cost per unit from total cost and units produced.
Course Load Calculator
Total course credits and estimate average credits per term.
Credit Weighted Average Calculator
Calculate an academic average when courses have different credit units.
Crop Loss Percentage Calculator
Calculate the percentage of harvested crop lost before sale.
Crop Profit Per Hectare Calculator
Estimate profit generated per hectare from crop production.
Crop Revenue Calculator
Estimate crop revenue from quantity sold and selling price.
Cube Root Calculator
Calculate the real cube root of a number.
Current Ratio Calculator
Calculate the current ratio to compare current assets with current liabilities.
Customer Acquisition Cost Calculator
Calculate customer acquisition cost from sales and marketing spend and new customers acquired.
Customer Churn Rate Calculator
Calculate customer churn for a period from customers lost and the starting customer base.
Customer Profitability Calculator
Estimate profit generated by an individual customer.
Customer Retention Rate Calculator
Calculate the percentage of starting customers retained during a period.
Daily Commute Cost Calculator
Estimate monthly commuting cost from daily fares, travel days and optional return-trip costs.
Daily Task Capacity Calculator
Estimate how many tasks fit into a workday.
Daily Transport Budget Calculator
Estimate daily and monthly transport spending.
Data Transfer Time Calculator
Estimate transfer time from file size and transfer speed.
Data Usage Calculator
Estimate mobile data usage from daily usage and number of days.
Date Add / Subtract Calculator
Move a starting date forward or backward by a selected number of days, weeks or calendar months.
Date Difference Calculator
Calculate the difference between two calendar dates.
Days Inventory Outstanding Calculator
Estimate the average number of days inventory remains before being sold.
Days Until Date Calculator
Calculate the number of calendar days between today and a target date.
Deadline Progress Calculator
Calculate progress through a project based on elapsed and total days.
Debt Avalanche Calculator
Plan a debt-payoff order that targets the highest interest rate first while preserving minimum payments.
Debt Payment To Income Calculator
Measure monthly debt payments against income.
Debt Payoff Time Calculator
Estimate how long it will take to repay debt at a fixed payment.
Debt Service Coverage Ratio Calculator
Estimate how comfortably operating cash flow covers debt service.
Debt Snowball Calculator
Plan a debt-payoff order that targets the smallest balance first while preserving minimum payments.
Debt-to-Income Ratio Calculator
Calculate your debt-to-income ratio from monthly debt payments and gross monthly income.
Decimal Hours to Time Calculator
Convert decimal hours into hours and minutes.
Decimal to Fraction Calculator
Convert a terminating decimal to a simplified fraction.
Delivery Cost Per Order Calculator
Calculate average delivery cost per order from total delivery spend.
Delivery Cost Percentage Calculator
Calculate delivery cost as a percentage of order value.
Delivery Failure Rate Calculator
Calculate the percentage of delivery attempts that fail.
Delivery Margin Calculator
Estimate delivery margin from delivery revenue and delivery cost.
Delivery Revenue Per Driver Calculator
Calculate average delivery revenue per driver.
Delivery Success Rate Calculator
Calculate successful delivery rate from successful and attempted deliveries.
Delivery Time Per Stop Calculator
Estimate average time spent per delivery stop.
Discount Calculator
Calculate the discount amount and final price from an original price and percentage discount.
Discounted Cash Flow Calculator
Estimate present value from a future cash flow and discount rate.
Dispatch Accuracy Calculator
Calculate the percentage of dispatched orders without a dispatch error.
Distance Between Numbers Calculator
Calculate the absolute distance between two numbers.
Distance Per Hour Calculator
Calculate average distance travelled per hour.
Dividend Yield Calculator
Calculate dividend yield from a share price and annual dividend per share.
Door Area Calculator
Calculate door surface area from width and height.
Ecommerce Contribution Margin Calculator
Calculate contribution margin per ecommerce order.
Ecommerce Profit Per Order Calculator
Calculate profit remaining from each ecommerce order.
Economic Order Quantity Calculator
Estimate an order quantity that balances ordering and holding costs.
Effective Interest Rate Calculator
Convert a nominal annual rate with compounding into an effective annual rate.
Egg Production Rate Calculator
Calculate laying rate from eggs produced and bird count.
Electricity Cost Estimator
Estimate electricity cost from appliance wattage, usage and a price per kWh.
Email Click Rate Calculator
Calculate email click rate from clicks and delivered messages.
Email Open Rate Calculator
Calculate email open rate from delivered emails and opens.
Emergency Fund Calculator
Estimate an emergency-fund target from essential monthly expenses and the number of months you want covered.
Emergency Fund Months Calculator
Calculate how many months of expenses your emergency fund covers.
Employee Turnover Cost Calculator
Estimate the cost of replacing an employee.
EV Charging Cost Calculator
Estimate electric vehicle charging cost from battery energy added and electricity price.
Event Budget Calculator
Estimate an event budget from guest count and major per-person and fixed costs.
Exam Percentage Calculator
Convert marks earned and marks available into an exam percentage.
Excavation Volume Calculator
Calculate excavation volume from length, width and depth.
Expected Value Calculator
Calculate expected value from outcomes and probabilities.
Expense Variance Calculator
Measure the difference between planned and actual expenses.
Exponent Calculator
Calculate a number raised to a power.
Factorial Calculator
Calculate the factorial of a non-negative integer.
Fare Split Calculator
Split a shared transport or taxi fare evenly among passengers.
Farm Break-Even Price Calculator
Calculate the minimum selling price needed to cover production cost.
Farm Break-Even Yield Calculator
Estimate the yield needed to recover total farm costs at a given selling price.
Farm Cost Per Hectare Calculator
Calculate average production cost per hectare.
Farm Input Budget Calculator
Combine land preparation, seed, fertilizer and labour costs into a farm input budget.
Farm Input Cost Ratio Calculator
Calculate farm input costs as a percentage of total production cost.
Farm Labour Cost Calculator
Estimate labour cost from workers, days and daily pay.
Farm Labour Cost Per Hectare Calculator
Calculate labour cost per hectare.
Farm Profit Calculator
Estimate farm profit from crop revenue and total costs.
Farm Revenue Per Hectare Calculator
Estimate revenue generated per hectare.
Fertilizer Cost Calculator
Estimate total fertilizer cost from quantity and price per bag or kilogram.
Fertilizer Cost Per Hectare Calculator
Calculate fertilizer cost per hectare.
Fertilizer Rate Calculator
Estimate fertilizer needed from field area and application rate.
Final Grade Calculator
Combine completed coursework and a final assessment to estimate a final course grade.
Fish Stocking Density Calculator
Estimate fish stocking density per cubic metre.
Fixed Cost Calculator
Estimate total fixed costs from recurring cost items.
Fleet Fuel Efficiency Calculator
Calculate average fleet fuel efficiency.
Fleet Utilization Calculator
Calculate the percentage of available fleet capacity being used.
Floor Screed Calculator
Calculate floor screed volume from floor area and screed thickness.
Floor Screed Quantity Calculator
Estimate screed volume from floor area and thickness.
Floor Tile Quantity Calculator
Estimate the number of floor tiles needed from room area, tile size and waste allowance.
Flooring Waste Calculator
Calculate extra flooring material required for cutting and waste.
Focus Time Percentage Calculator
Calculate focused work time as a percentage of available time.
Food Cost Percentage Calculator
Calculate food cost as a percentage of selling price.
Food Delivery Fee Per Order Calculator
Estimate average delivery cost per completed order.
Food Price Increase Calculator
Calculate a new food price after a percentage increase.
Food Price Inflation Calculator
Estimate a future food price after annual inflation.
Food Waste Percentage Calculator
Measure food waste as a percentage of food purchased.
Foundation Volume Calculator
Calculate foundation concrete volume from length, width and depth.
Fraction to Decimal Calculator
Convert a fraction to a decimal.
Fuel Consumption Rate Calculator
Calculate fuel used per 100 kilometres.
Fuel Cost Calculator
Estimate trip fuel cost from distance, vehicle fuel economy and current fuel price.
Fuel Cost Per Delivery Calculator
Estimate fuel cost allocated to each delivery.
Fuel Economy Calculator
Estimate fuel consumption and cost for a trip.
Fuel Needed Calculator
Estimate litres of fuel required for a trip from distance and vehicle fuel economy.
Fuel Savings Calculator
Estimate savings when fuel economy improves or fuel price changes.
Furniture Space Planner
Estimate how much floor area selected furniture occupies in a room.
Future Value Savings Calculator
Estimate how regular deposits can grow over time with a chosen annual return.
Generator Fuel Budget Calculator
Estimate monthly generator fuel spending.
Generator Fuel Consumption per Hour Calculator
Estimate fuel consumption rate and full-tank operating duration from generator kVA rating and load percentage.
Generator Fuel Cost Calculator
Estimate generator fuel spending from fuel price, runtime and hourly consumption.
Generator Runtime Calculator
Estimate how long a generator can run from available fuel and hourly consumption.
GPA Calculator
Calculate GPA from course credit units and grade points.
GPA Target Calculator
Estimate the GPA required in remaining courses to reach a target cumulative GPA.
Grade Average Calculator
Calculate the average of several scores.
Grade Percentage Calculator
Convert a score into a percentage from marks earned and marks possible.
Greatest Common Divisor Calculator
Find the greatest common divisor of two integers.
Greenhouse Space Calculator
Estimate greenhouse floor area from plant count and spacing.
Grocery Budget Calculator
Build a simple monthly grocery budget from weekly food spending and household extras.
Grocery Cost Per Item Calculator
Calculate average cost per item from a grocery total.
Gross Margin Calculator
Calculate gross profit and gross margin from sales revenue and cost of goods sold.
Gross Revenue Calculator
Calculate gross sales revenue from quantity sold and selling price.
Harvest Revenue Per Kilogram Calculator
Calculate crop revenue earned per kilogram sold.
Harvest Yield Calculator
Estimate crop yield from harvested area and yield per hectare.
Harvest Yield Per Hectare Calculator
Calculate crop yield per hectare from total harvest and area.
Hectare to Plots Calculator
Estimate how many plots fit into a hectare using the plot dimensions you choose.
Home Affordability Calculator
Estimate a home price ceiling from a planned deposit and a maximum monthly payment.
Home Deposit Calculator
Calculate the deposit amount and remaining balance from a property price and deposit percentage.
Home Maintenance Budget Calculator
Set aside a monthly home-maintenance budget from property value and an annual maintenance rate.
Hotel Cost Per Night Calculator
Calculate effective nightly accommodation cost when fees and taxes are added.
Hourly Labour Cost Calculator
Calculate labour cost per hour from daily pay and working hours.
Hours to Decimal Calculator
Convert hours and minutes into decimal hours.
Hours to Minutes Calculator
Convert hours and minutes into total minutes.
Household Emergency Reserve Calculator
Estimate an emergency cash reserve from essential monthly household expenses and coverage months.
Household Expense Split Calculator
Split shared household expenses by an equal share or proportional income.
Household Net Worth Calculator
Estimate household net worth by subtracting total liabilities from total assets.
HTML Entity Encoder
Encode or decode common HTML entities.
Image Aspect Ratio Calculator
Calculate image aspect ratio from width and height.
Inflation Calculator
Estimate how a chosen annual inflation rate changes the amount needed to preserve today
Ingredient Substitution Ratio Calculator
Scale a replacement ingredient quantity using a substitution ratio.
Interest Coverage Ratio Calculator
Measure how many times operating profit covers interest expense.
Internet Bill Budget Calculator
Plan monthly internet spending from subscription cost, add-ons and expected usage.
Interquartile Range Calculator
Calculate the interquartile range from a data set.
Inventory Days Calculator
Estimate how many days current inventory can support.
Inventory Order Accuracy Calculator
Calculate the percentage of customer orders shipped correctly.
Inventory Sell-Through Rate Calculator
Calculate the percentage of available inventory sold during a period.
Inventory Shrinkage Calculator
Calculate inventory shrinkage percentage from recorded and actual stock.
Inventory Turnover Calculator
Measure how many times inventory is sold and replaced during a period.
Inventory Value Calculator
Estimate inventory value from units on hand and unit cost.
Inverter Battery Backup Calculator
Calculate estimated battery runtime hours from battery amp-hour capacity, voltage, and connected load.
Inverter Load Calculator
Add appliance wattages to estimate the total electrical load an inverter must support.
Investment CAGR Calculator
Calculate compound annual growth rate between an initial investment and its ending value.
Investment Return Calculator
Project the future value of an opening investment plus recurring monthly contributions under an assumed annual return.
Investment Return Percentage Calculator
Calculate percentage return on an investment.
Invoice Total Calculator
Calculate invoice subtotal, discount, tax, and final total.
Irrigation Cost Calculator
Estimate irrigation cost from water volume and cost per litre.
Irrigation Water Requirement Calculator
Estimate irrigation volume from field area and application depth.
JAMB Aggregate Score Estimator
Estimate a weighted admission aggregate from UTME and school scores.
JSON Formatter
Format and validate JSON in your browser.
Kitchen Capacity Calculator
Estimate production capacity from batches and items per batch.
Land Area Converter
Convert land area between square metres, hectares, acres and square feet using fixed mathematical conversions.
Lead Conversion Value Calculator
Estimate expected revenue from a pool of leads.
Lead Response Rate Calculator
Calculate the percentage of leads that received a response within a chosen period.
Lead to Customer Rate Calculator
Calculate the percentage of qualified leads that become paying customers.
Lead Value Calculator
Estimate average lead value from expected revenue and number of leads.
Least Common Multiple Calculator
Find the least common multiple of two positive integers.
Line Counter
Count lines and non-empty lines in text.
Livestock Feed Cost Calculator
Estimate livestock feed cost from daily consumption, animal count, days and price.
Livestock Feed Cost Per Animal Calculator
Estimate feed cost per animal over a feeding period.
Livestock Feed Requirement Calculator
Estimate total livestock feed required over a feeding period.
Load Utilization Calculator
Calculate the percentage of available vehicle capacity being used.
Loan Affordability Calculator
Estimate a fixed-rate loan principal from a target monthly payment, annual interest rate and repayment term.
Loan Interest Calculator
Estimate total simple or amortized loan interest from principal, rate and term.
Loan Interest Cost Calculator
Estimate total interest paid over a loan term.
Loan Repayment Calculator
Estimate monthly loan payments from principal, annual interest and term.
Loan Term Calculator
Estimate the number of monthly payments needed to repay a loan at a chosen payment and interest rate.
Logarithm Calculator
Calculate a logarithm for a chosen base.
Logistics Cost Per Kilometre Calculator
Calculate average logistics cost per kilometre.
Marketing Budget Allocation Calculator
Allocate a marketing budget by percentage across channels.
Marketing Revenue Per Customer Calculator
Calculate average revenue generated per acquired customer.
Marketplace Fee Calculator
Calculate marketplace fees from a selling price and fee rate.
Marks Needed Calculator
Calculate marks needed on a remaining assessment to reach a target total percentage.
Markup Calculator
Calculate selling price, markup amount and markup percentage from product cost and a target markup.
Markup Price Calculator
Calculate a selling price from cost and a target markup percentage.
Meal Budget Per Day Calculator
Calculate an average daily meal budget from a total food budget.
Meal Prep Cost Calculator
Estimate total and per-meal meal-prep cost.
Median Calculator
Find the middle value in an ordered data set.
Meeting Attendance Rate Calculator
Calculate meeting attendance percentage.
Meeting Cost Calculator
Estimate the labour cost of a meeting from attendee count, average hourly cost and duration.
Menu Price Calculator
Estimate a menu price from ingredient cost and target food cost percentage.
Midpoint Calculator
Find the midpoint between two numbers.
Milk Yield Per Animal Calculator
Calculate average milk yield per animal.
Minutes to Hours Calculator
Convert total minutes into hours and minutes.
Mixed Number Calculator
Convert a mixed number to an improper fraction and decimal.
Mobile Data Cost Calculator
Estimate the monthly cost of mobile data from daily usage and your price per GB.
Mode Calculator
Find the most frequently occurring value in a data set.
Monthly Budget Calculator
Plan monthly income across spending categories.
Monthly Energy Usage Calculator
Estimate monthly electricity consumption from appliance wattage, daily hours and quantity.
Monthly Food Budget Calculator
Estimate a household monthly food budget in naira.
Monthly Household Budget Percentage Calculator
Show what percentage of a household budget is allocated to each spending category.
Monthly Recurring Revenue Calculator
Estimate MRR from active subscriptions and their recurring monthly prices.
Monthly Rent to Annual Cost Calculator
Convert a monthly rent figure into annual housing cost and show the effect of extra housing charges.
Monthly Revenue Run Rate Calculator
Annualize current monthly revenue to estimate a revenue run rate.
Monthly Savings Calculator
Calculate the monthly amount needed to reach a savings target by a chosen deadline.
Monthly Savings Rate Calculator
Calculate monthly savings as a percentage of income.
Mortar Volume Calculator
Estimate mortar volume from wall area and mortar thickness.
Mortgage Calculator
Estimate an indicative fixed-rate mortgage payment after subtracting a planned deposit from a property price.
Naira Currency Gain Loss Calculator
Calculate gains or losses when an exchange rate changes.
Naira Debt Payment Calculator
Estimate regular payments needed to clear a naira debt.
Naira Discount Calculator
Calculate discounts and final prices in naira.
Naira Inflation Price Calculator
Estimate the future or equivalent price of an item after inflation.
Naira Markup Calculator
Calculate markup and selling price using naira amounts.
Naira Profit Calculator
Calculate profit from Nigerian naira cost and selling prices.
Naira Savings Goal Calculator
Calculate how much to save each month toward a naira goal.
Natural Log Calculator
Calculate the natural logarithm of a positive number.
Net Margin Calculator
Calculate net profit and net profit margin from revenue and total expenses.
Net Revenue Calculator
Estimate revenue after returns, discounts and allowances.
Net Salary Estimator
Estimate take-home pay after simple deductions.
Nigeria VAT Calculator
Calculate 7.5% Nigerian VAT on a taxable amount and separate the VAT from a VAT-inclusive price.
Nigerian PAYE Tax Calculator (2026 Bands)
Calculate Nigerian Personal Income Tax (PAYE) with 2026 progressive tax bands, pension deduction, and rent relief caps. Fast, private client-side calculator.
Nigerian Rent Affordability Calculator
Estimate a practical monthly rent ceiling from your household income and essential monthly expenses.
Nigerian Rent Increase Calculator
Calculate the effect of a proposed rent increase in naira.
Nigerian Road Trip Cost Calculator
Estimate a road-trip budget using distance, fuel economy, fuel price, tolls and other planned costs.
NYSC Age Calculator
Calculate age on a selected reference date for planning NYSC eligibility.
Odds Probability Calculator
Convert between probability and odds.
On-Time Delivery Rate Calculator
Calculate the percentage of deliveries completed on time.
Operating Expense Ratio Calculator
Measure operating expenses as a percentage of revenue.
Operating Margin Calculator
Calculate operating profit and operating margin from revenue and operating expenses.
Order Fulfillment Rate Calculator
Calculate the percentage of orders fulfilled from total orders received.
Orders Per Delivery Driver Calculator
Calculate average completed orders per driver.
Overtime Hours Calculator
Calculate total overtime hours from regular and overtime time entries.
Overtime Pay Rate Calculator
Calculate overtime hourly pay from a base hourly rate and multiplier.
Packaging Cost Per Order Calculator
Calculate average packaging cost per order.
Paint Coat Calculator
Estimate paint volume from paintable area, coats and coverage.
Paint Quantity Calculator
Estimate litres of paint needed from wall area, coverage and number of coats.
Parking Budget Calculator
Estimate parking spending for a trip or recurring work schedule.
Password Generator
Generate a random browser-side password with adjustable length and a mixed character set.
Payables Days Calculator
Estimate the average number of days a business takes to pay suppliers.
Payment Frequency Calculator
Compare weekly, biweekly, monthly, and annual payment frequencies.
Payroll Cost Percentage Calculator
Measure payroll cost as a percentage of business revenue.
Percentage Calculator
Calculate a percentage of an amount, percentage change, or the percentage one number represents of another.
Percentage Change Calculator
Calculate the percentage increase or decrease between two values.
Percentage Error Calculator
Calculate percentage error between measured and reference values.
Percentage of a Number Calculator
Find a percentage of any number quickly.
Percentage Point Difference Calculator
Calculate the difference between two percentages in percentage points.
Percentage Points Change Calculator
Calculate the change in percentage points between two percentages.
Percentage to Marks Calculator
Calculate the marks required to achieve a target percentage on an assessment.
Percentile Rank Calculator
Estimate percentile rank from a value, mean and standard deviation.
Permutation Calculator
Calculate the number of ordered arrangements.
Pesticide Dilution Calculator
Calculate product quantity from a specified dilution rate.
Petrol Price Trip Calculator
Calculate trip fuel cost from distance, efficiency, and petrol price.
Pipeline Coverage Calculator
Estimate how much qualified pipeline is needed to support a sales target.
Plant Population Calculator
Estimate plant population from land area and plant spacing.
Plant Spacing Calculator
Estimate plant population from field area and spacing.
Plaster Material Calculator
Estimate plaster volume from surface area and plaster thickness.
Plot to Hectare Calculator
Convert a custom plot size into hectares and compare it with common land-area units.
Pomodoro Session Calculator
Plan focused study or work time from session length, breaks and number of cycles.
Present Value Calculator
Estimate what a future lump sum is worth today at a chosen discount rate.
Price After Discount Calculator
Calculate the final price after one or more discounts.
Price Before Tax Calculator
Find the pre-tax price from a tax-inclusive total.
Probability Complement Calculator
Calculate the probability that an event does not occur.
Product Discount Calculator
Calculate discount amount and final product price.
Productivity Rate Calculator
Calculate output produced per hour.
Profit Calculator
Calculate profit, loss and profit margin.
Profit Margin Calculator
Calculate profit and profit margin from revenue and total costs.
Profit Per Employee Calculator
Calculate average profit per employee.
Profit Per Unit Calculator
Calculate the profit earned on each unit sold.
Profit Target Sales Calculator
Calculate the sales required to reach a target profit.
Project Budget Per Deliverable Calculator
Calculate average budget available for each project deliverable.
Project Completion Rate Calculator
Calculate project completion from completed and total work units.
Project Cost Per Hour Calculator
Calculate average project cost per hour worked.
Project Cost Per Square Metre Calculator
Calculate construction project cost per square metre.
Property Deposit Percentage Calculator
Calculate a property deposit as a percentage of purchase price.
Property Loan-to-Value Calculator
Calculate loan-to-value percentage for a property purchase.
Property Price Per Square Metre Calculator
Calculate property price per square metre.
Proportion Calculator
Solve a missing value in a proportion.
Quartile Calculator
Calculate Q1, median and Q3 for a data set.
Quick Ratio Calculator
Calculate the quick ratio using liquid current assets and current liabilities.
Range Calculator
Calculate the range of a data set.
Ratio Calculator
Simplify a ratio and show its decimal relationship.
Reading Pace Calculator
Estimate reading time from page count and reading speed.
Receivables Days Calculator
Estimate average collection time from receivables and credit sales.
Recipe Cost Per Serving Calculator
Calculate the cost of a recipe and the estimated cost per serving.
Recipe Ingredient Scaling Calculator
Scale an ingredient quantity from one serving count to another.
Recipe Scaler
Scale a recipe
Regex Tester
Test a regular expression against sample text in your browser.
Relative Difference Calculator
Calculate relative difference between two values.
Remove Duplicate Lines
Remove repeated lines from text in your browser.
Renovation Budget Calculator
Estimate a renovation budget from area, cost per square metre and contingency.
Rent Increase Calculator
Calculate the naira increase and new rent after a percentage rent increase.
Rent Per Square Metre Calculator
Calculate annual rent per square metre.
Rental Yield Calculator
Calculate gross annual rental yield from property price and rent.
Reorder Point Calculator
Estimate when a business should reorder stock using demand, lead time and safety stock.
Repeat Purchase Rate Calculator
Calculate the share of customers who purchased more than once.
Required Exam Score Calculator
Calculate the score needed on a remaining exam to reach a target final grade.
Restaurant Break-Even Meals Calculator
Estimate the number of meals needed to cover fixed restaurant costs.
Restaurant Table Turnover Calculator
Estimate how many table parties can be served during a service period.
Retail Price Calculator
Calculate retail price from cost and desired margin.
Return on Ad Spend Calculator
Calculate ROAS from advertising spend and attributed revenue.
Return on Assets Calculator
Calculate return on assets using profit and average assets.
Return on Equity Calculator
Calculate return on equity from net income and average shareholder equity.
Return On Inventory Investment Calculator
Estimate return relative to inventory investment.
Return Rate Calculator
Calculate the percentage of delivered orders that were returned.
Revenue Growth Calculator
Calculate revenue growth in naira and percentage terms between two periods.
Revenue Per Employee Calculator
Calculate average revenue generated per employee.
ROI Calculator
Calculate simple return on investment from an initial cost and an ending value.
Roof Area Calculator
Estimate roof surface area from building footprint and pitch multiplier.
Roof Material Cost Calculator
Estimate roof material cost from roof area and unit price.
Roof Pitch Calculator
Calculate roof pitch as a ratio and percentage from rise and run.
Route Cost Calculator
Estimate route fuel cost from distance and vehicle fuel economy.
Route Profit Calculator
Calculate profit from a delivery route.
Safety Stock Calculator
Estimate a simple safety-stock quantity from average demand and peak demand during a lead-time period.
Salary Calculator
Calculate gross salary and entered-figure net salary.
Salary Increase Calculator
Calculate the naira and percentage effect of a salary increase on monthly or annual pay.
Salary Reduction Calculator
Calculate a new salary after a percentage or fixed reduction.
Sales Commission Split Calculator
Split commission earnings across salespeople or partners.
Sales Growth Rate Calculator
Calculate the percentage change in sales between two periods.
Sales Target Calculator
Calculate the units or revenue needed to reach a sales target.
Sales Win Rate Calculator
Calculate the percentage of qualified opportunities that become wins.
Savings Goal Calculator
Estimate how much to save each month to reach a target amount.
Savings Goal Deadline Calculator
Estimate when a savings goal can be reached.
Scholarship Percentage Calculator
Calculate the percentage of tuition covered by a scholarship.
School Fees Budget Calculator
Plan school-fee payments by spreading a target amount across months and adding a buffer.
School Fees Installment Calculator
Split school fees into manageable installment payments.
School Transport Budget Calculator
Estimate monthly school transport spending from daily fare and school days.
Scientific Notation Calculator
Convert a number to scientific notation.
Seed Germination Rate Calculator
Calculate the percentage of planted seeds that germinate.
Seed Rate Calculator
Calculate seed required for a planting area from the recommended seed rate.
Semester GPA Calculator
Calculate GPA from grade points and credit units for a semester.
Server Uptime Percentage Calculator
Calculate uptime percentage from total and downtime hours.
Shift Hours Calculator
Calculate shift duration from start and end times entered as decimal hours.
Shipment Revenue Per Kg Calculator
Calculate revenue earned per kilogram shipped.
Shipment Weight Average Calculator
Calculate average shipment weight.
Shipping Cost Per Kg Calculator
Calculate average shipping cost per kilogram.
Simple Interest Calculator
Calculate simple interest and total amount.
Simple Interest Earnings Calculator
Calculate interest earned using simple interest.
Social Engagement Rate Calculator
Calculate engagement rate from interactions and audience size.
Social Media Follower Growth Calculator
Calculate follower growth between two points in time.
Solar Battery Runtime Calculator
Estimate battery runtime from battery capacity, usable percentage and appliance load.
Solar Panel Savings Calculator
Estimate simple monthly and annual savings from replacing grid or generator electricity with solar energy.
Solar Panel Sizing Calculator
Estimate total solar PV panel wattage needed from daily energy load (kWh) and local peak sun hours. Transparent calculation formula and sizing guidance.
Square Root Calculator
Calculate the square root of a non-negative number.
Standard Deviation Calculator
Measure how spread out a data set is.
Storage Utilization Calculator
Calculate storage used as a percentage of total capacity.
Student Budget Calculator
Estimate a student
Study Break Calculator
Estimate total study-session time when planned breaks are included.
Study Hours Calculator
Estimate daily study time from total planned hours and available study days.
Study Time Allocation Calculator
Allocate available study hours across subjects using percentage priorities.
Target Profit Revenue Calculator
Calculate the revenue required to cover fixed costs and reach a target profit at a chosen margin.
Task Completion Rate Calculator
Calculate the percentage of planned tasks completed.
Task Cost Calculator
Estimate the labour cost of a task from time and hourly rate.
Tax Inclusive Price Calculator
Calculate the pre-tax price from a tax-inclusive amount.
Taxi Fare Per Kilometre Calculator
Estimate a taxi fare from a base charge, distance rate and trip distance.
Terminal Value Calculator
Estimate terminal value using a perpetual-growth method.
Text Case Converter
Convert text to uppercase, lowercase or title case in your browser.
Tile Adhesive Quantity Calculator
Estimate tile adhesive required from tile area and application rate.
Tile Box Calculator
Estimate the number of tile boxes required from area covered per box.
Tile Grout Quantity Calculator
Estimate grout quantity from tiled area and grout rate.
Tile Wastage Calculator
Add a selected wastage percentage to the required tile area.
Time Addition Calculator
Add hours and minutes to a starting time.
Time Allocation Calculator
Calculate hours assigned to a category from total available time and percentage.
Time Duration Calculator
Calculate the duration between two times.
Time Saved Percentage Calculator
Calculate the percentage of time saved by a process improvement.
Time Subtraction Calculator
Subtract hours and minutes from a starting time.
Time Zone Offset Calculator
Convert a time using a simple UTC offset.
Tip Calculator
Calculate a tip and split a bill between people.
Toll Budget Calculator
Estimate total toll spending from the number of toll points and cost per crossing.
Total Cost Calculator
Combine fixed and variable costs to estimate total operating or production cost.
Travel Budget Calculator
Build a trip budget from transport, accommodation, food and other planned costs.
Travel Cost Per Kilometre Calculator
Calculate average travel cost per kilometre.
Travel Cost Per Passenger Calculator
Calculate trip cost per passenger.
Travel Meal Budget Calculator
Estimate food spending during a trip from meals per day, people and travel days.
Trip Duration Calculator
Estimate travel time from distance and average speed.
Tuition Installment Calculator
Split a tuition balance into equal installments and show the amount per payment.
Tyre Cost Per Kilometre Calculator
Estimate tyre cost per kilometre from a tyre set price and expected service life.
Unit Converter
Convert common length, weight and temperature units.
Unit Price Calculator
Compare the cost of products by unit.
Unit Rate Calculator
Calculate the amount per one unit.
Unix Timestamp Converter
Convert Unix timestamps to readable dates and vice versa.
URL Encode Decode Tool
Encode or decode URL components safely in your browser.
URL Slug Generator
Create a simple URL-friendly slug from a title.
Variable Cost Calculator
Estimate total variable cost from units produced and variable cost per unit.
Variance Calculator
Calculate the variance of a data set.
VAT Calculator
Calculate VAT amount and total price from a base price.
Vehicle Cost Per Kilometre Calculator
Estimate running cost per kilometre from fuel, maintenance and other vehicle costs.
Vehicle Depreciation Calculator
Estimate straight-line vehicle depreciation from purchase price, residual value and ownership years.
Vehicle Load Factor Calculator
Calculate vehicle load as a percentage of rated capacity.
Vehicle Trip Time Calculator
Calculate travel time from distance and average speed.
WAEC Grade Calculator
Estimate a WAEC-style grade from a subject score.
Wall Paint Area Calculator
Calculate paintable wall area after subtracting doors and windows.
Wall Paint Cost Calculator
Estimate paint cost from wall area, coverage and price per litre.
Warehouse Capacity Calculator
Estimate used warehouse capacity as a percentage of total capacity.
Warehouse Labour Cost Per Order Calculator
Calculate warehouse labour cost per order.
Warehouse Picking Accuracy Calculator
Calculate warehouse picking accuracy.
Warehouse Space Utilization Calculator
Calculate warehouse space utilization percentage.
Water Bill Estimator
Estimate a household water bill from usage, unit price and fixed charges.
Water Need per Hectare Calculator
Estimate irrigation water volume from area and application depth.
Water Tank Farm Storage Calculator
Estimate days of farm water coverage from stored volume and daily use.
Water Tank Refill Calculator
Estimate the volume and approximate cost of filling a water tank from its capacity and current level.
Wedding Budget Calculator
Add major wedding spending categories to estimate a total event budget.
Weekly Hours Percentage Calculator
Calculate a task share of total weekly working hours.
Weekly Task Capacity Calculator
Estimate weekly task capacity from daily capacity and workdays.
Weekly Workload Calculator
Add work hours across multiple activities to estimate a weekly workload.
Weeks Between Dates Calculator
Calculate the number of weeks between two dates.
Weighted Average Calculator
Calculate a weighted average from values and weights.
Weighted Cost Average Calculator
Calculate average unit cost across two purchase batches.
Weighted Grade Calculator
Calculate a final grade when assignments have different weights.
Weighted Score Calculator
Calculate a weighted score from multiple components entered as two pairs.
Whitespace Cleaner
Clean repeated spaces, tabs and blank lines from text.
Wholesale Margin Calculator
Calculate wholesale selling price and margin.
Wholesale Price Calculator
Estimate a wholesale price that protects a target margin after production or purchase cost.
Window Area Calculator
Calculate the area of a window from width and height.
Word Counter
Count words, characters and lines in text directly in your browser.
Words Per Minute Calculator
Calculate reading or speaking speed in words per minute.
Work Hours Per Month Calculator
Estimate monthly work hours from weekly hours and weeks per month.
Workday Cost Calculator
Calculate an estimated cost per working day from annual compensation.
Working Capital Calculator
Calculate working capital from current assets and current liabilities.
Working Capital Turnover Calculator
Measure how much revenue is generated relative to working capital.
Workload Balance Calculator
Compare assigned workload between two people or teams.
Z Score Calculator
Calculate how many standard deviations a value is from the mean.