Quick, no-nonsense calculators for everyday math — percentages, ages and more. Instant answers, right in your browser.
Work out percentages, percentage change and "X is what % of Y" in seconds.
CalculatorsMonthly payment, total interest and cost for a mortgage, car or personal loan.
CalculatorsGet your body mass index and weight category in metric or imperial units.
CalculatorsWork out the tip, total and per-person split for any bill.
CalculatorsFind an exact age in years, months and days from a date of birth.
CalculatorsTime between two dates in years, months, days — plus total days and weeks.
CalculatorsSale price, savings and final cost — with stacked discounts and tax.
CalculatorsFull monthly payment (PITI) — principal, interest, tax, insurance and PMI.
Everyday math shouldn't need a spreadsheet. This category collects small, focused calculators that give you an instant answer and show the working, so you can trust the result. Each one runs entirely in your browser — fast, private and free.
Available now: a percentage calculator, a loan calculator, a BMI calculator, a tip calculator, an age calculator, a date difference calculator, a discount calculator and a mortgage calculator, with more everyday tools on the way.