PERSONAL FINANCE & INVESTING
Finance Tools
Take control of your money with our suite of personal finance calculators. Model different interest rates, calculate payoff timelines, and compare investment scenarios with clarity.
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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.
Age Calculator
Calculate age from a date of birth.
Annualized Return Calculator
Convert an investment return into an annualized rate return into an annualized rate
APR Calculator
Estimate an annualized borrowing cost from interest, fees, principal and loan term.
Baking Pan Conversion Calculator
Scale a recipe when changing the baking pan area.
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.
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.
Checkout Completion Rate Calculator
Calculate the percentage of initiated checkouts that complete.
Click-Through Rate Calculator
Calculate CTR from clicks and impressions.
Compound Interest Calculator
Estimate future value from an initial amount, recurring contribution, interest rate and compounding frequency.
Daily Task Capacity Calculator
Estimate how many tasks fit into a workday.
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.
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 Snowball Calculator
Plan a debt-payoff order that targets the smallest balance first while preserving minimum payments.
Decimal Hours to Time Calculator
Convert decimal hours into hours and minutes.
Decimal to Fraction Calculator
Convert a terminating decimal to a simplified fraction.
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.
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.
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.
Expected Value Calculator
Calculate expected value from outcomes and probabilities.
Exponent Calculator
Calculate a number raised to a power.
Fish Stocking Density Calculator
Estimate fish stocking density per cubic metre.
Fixed Cost Calculator
Estimate total fixed costs from recurring cost items.
Fleet Utilization Calculator
Calculate the percentage of available fleet capacity being used.
Focus Time Percentage Calculator
Calculate focused work time as a percentage of available time.
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.
Fraction to Decimal Calculator
Convert a fraction to a decimal.
Future Value Savings Calculator
Estimate how regular deposits can grow over time with a chosen annual return.
Generator Runtime Calculator
Estimate how long a generator can run from available fuel and hourly consumption.
Greatest Common Divisor Calculator
Find the greatest common divisor of two integers.
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.
Hourly Labour Cost Calculator
Calculate labour cost per hour from daily pay and working hours.
Inflation Calculator
Estimate how a chosen annual inflation rate changes the amount needed to preserve today
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.
Kitchen Capacity Calculator
Estimate production capacity from batches and items per batch.
Least Common Multiple Calculator
Find the least common multiple of two positive integers.
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.
Marketplace Fee Calculator
Calculate marketplace fees from a selling price and fee rate.
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 Prep Cost Calculator
Estimate total and per-meal meal-prep cost.
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.
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.
Natural Log Calculator
Calculate the natural logarithm of a positive number.
Net Salary Estimator
Estimate take-home pay after simple deductions.
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.
Order Fulfillment Rate Calculator
Calculate the percentage of orders fulfilled from total orders received.
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.
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.
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.
Pesticide Dilution Calculator
Calculate product quantity from a specified dilution rate.
Pipeline Coverage Calculator
Estimate how much qualified pipeline is needed to support a sales target.
Plant Spacing Calculator
Estimate plant population from field area and spacing.
Present Value Calculator
Estimate what a future lump sum is worth today at a chosen discount rate.
Price Before Tax Calculator
Find the pre-tax price from a tax-inclusive total.
Productivity Rate Calculator
Calculate output produced per hour.
Profit Margin Calculator
Calculate profit and profit margin from revenue and total costs.
Project Completion Rate Calculator
Calculate project completion from completed and total work units.
Receivables Days Calculator
Estimate average collection time from receivables and credit sales.
Recipe Ingredient Scaling Calculator
Scale an ingredient quantity from one serving count to another.
Recipe Scaler
Scale a recipe
Relative Difference Calculator
Calculate relative difference between two values.
Repeat Purchase Rate Calculator
Calculate the share of customers who purchased more than once.
Return on Ad Spend Calculator
Calculate ROAS from advertising spend and attributed revenue.
Return on Equity Calculator
Calculate return on equity from net income and average shareholder equity.
Return Rate Calculator
Calculate the percentage of delivered orders that were returned.
ROI Calculator
Calculate simple return on investment from an initial cost and an ending value.
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.
Savings Goal Calculator
Estimate how much to save each month to reach a target amount.
School Fees Installment Calculator
Split school fees into manageable installment payments.
Scientific Notation Calculator
Convert a number to scientific notation.
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.
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.
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.
Storage Utilization Calculator
Calculate storage used as a percentage of total capacity.
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.
Terminal Value Calculator
Estimate terminal value using a perpetual-growth method.
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 Saved Percentage Calculator
Calculate the percentage of time saved by a process improvement.
Time Subtraction Calculator
Subtract hours and minutes from a starting time.
Tip Calculator
Calculate a tip and split a bill between people.
Total Cost Calculator
Combine fixed and variable costs to estimate total operating or production cost.
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.
Variable Cost Calculator
Estimate total variable cost from units produced and variable cost per unit.
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 Score Calculator
Calculate a weighted score from multiple components entered as two pairs.
Window Area Calculator
Calculate the area of a window from width and height.
Workday Cost Calculator
Calculate an estimated cost per working day from annual compensation.
Workload Balance Calculator
Compare assigned workload between two people or teams.