Free browser-only calculators

Fast calculators for money, math, business, health, time, and everyday life.

Fast, clear, browser-only calculators with formulas, examples, FAQs, and no signup.

Find a calculator

Your quick list

Popular calculators

Quick answers for the calculations people use most.

Calculate percentages, parts, totals, increases, and decreases.

Estimate monthly loan payment, total repayment, and interest.

Calculate body mass index from height and weight.

Calculate exact age from date of birth.

Calculate sale price and money saved after a discount.

Add or remove VAT from a price.

Estimate monthly mortgage payment before taxes and insurance.

Calculate compound interest growth with regular compounding.

Estimate a comfortable monthly rent from income and target rent percentage.

Estimate months to pay off a credit card balance with fixed monthly payments.

Estimate the labor cost of a meeting.

Focused groups for stronger navigation and SEO.

No signupOpen and calculate instantly.

Browser-onlyCalculations run on your device.

SEO-readyFormula, examples, FAQ, and related links.