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Percentage Calculator
Calculate percentages, percentage changes, increases, and decreases with six live calculators that show the formula for each result.
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Calculators
Clear calculators for percentages, finance, dates, and everyday decisions.
Tool collection
Available tools
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Discount Calculator
Calculate the final price of an item after discounts, coupons, and sales tax. Enter the original price and quantity, choose a percentage or fixed-amount discount, and optionally apply an additional coupon.
Profit Margin Calculator
Calculate your profit margin, markup, and profit per item with this free Profit Margin Calculator. Enter your product cost and selling price to see how much profit you make on each sale and how your results change with additional costs and different quantities.
ROI Calculator
Calculate return on investment, net profit or loss, total return percentage, and estimated annualized ROI.
Simple Interest Calculator
Calculate simple interest and the final amount using your principal, annual interest rate, and time period. Choose a duration in years, months, or days, select a currency, and see your results update as you change the inputs.
Compound Interest Calculator
Estimate how your savings or investments may grow over time with compound interest. Enter an initial deposit, annual interest rate, and investment period. You can also add recurring contributions and choose how often they are made and how frequently interest compounds.
Loan / EMI Calculator
Calculate your estimated monthly loan payment, total interest, and repayment time with this free Loan EMI Calculator. Enter your loan amount, annual interest rate, and repayment term to see how much you may need to pay each month.
Age Calculator
Calculate your age in years, months, and days from your date of birth, or find your age on any past or future date.
Date Difference Calculator
Find out how much time separates two dates with this free Date Difference Calculator. Choose a start date and an end date to calculate the difference in calendar years, months, and days, as well as total days, weeks, business days, weekend days, and hours.
Tip Calculator
Use this free Tip Calculator to work out how much to leave as a tip and how to divide a bill between a group. Enter the bill subtotal, choose a suggested tip percentage or enter your own, and optionally include sales tax.