Percentage Tools

Free, instant calculators for everyday percentage calculations. No sign-up required.

Tip Calculator

Calculate tips, split bills, and find per-person totals for any group size.

Find the sale price after any percentage discount. See how much you save.

Calculate selling price from cost and markup. See profit and margin.

Convert scores to percentages, letter grades, and GPA on a 4.0 scale.

Calculate tax amount and total price from any sales tax, VAT, or GST rate.

See how savings grow over time with compound interest. Year-by-year breakdown.

Calculate monthly payments, total interest, and amortization for any loan.

Estimate body fat percentage using the U.S. Navy method with simple measurements.

Calculate profit margin percentage from cost and revenue. Margin vs markup comparison.

Calculate new salary after a percentage raise. See hourly, weekly, and monthly breakdown.

Calculate return on investment percentage, net profit, and annualized ROI.

Calculate down payment amount, loan balance, and estimated monthly payments.

Split bills fairly by income. See what each person should pay for rent, utilities, and more.

Apply the 50/30/20 rule, 70/20/10, 80/20, or custom budget to your income.

Estimate take-home pay after federal tax, state tax, Social Security, and Medicare.