Everyday life

Everyday calculators

The little sums that come up all the time: your exact age, the days between two dates or until an event, hours and minutes worked, a percentage, an average or a ratio, a unit conversion, the tip on a bill and splitting it between friends. Fast, clear answers with the working shown.

No sign-up and nothing stored — everything runs in your browser, in your own currency.

Pick a calculator (9)

Online calculatorA free basic and scientific calculator with history, memory and keyboard support — works on any phone.
Percentage calculatorFind a percentage of a number, what percent one number is of another, or the percentage change.
Age calculatorFind your exact age in years, months and days, plus the days to your next birthday.
Date calculatorCount the days between two dates, add or subtract days, weeks or months, or count down to a date.
Time calculatorAdd and subtract hours and minutes, count the hours between two times, or find the time after a duration.
Average calculatorThe average (mean) of a list of numbers, or a weighted average for grades, credit hours and prices.
Ratio calculatorSimplify a ratio, solve A : B = C : ?, or share an amount in a ratio such as 2 : 3 : 5 — with steps.
Tip calculatorWork out the tip and the total on a bill, and split it between any number of people.
Bill split calculatorSplit a bill evenly between friends, with an optional tip, and see what each person pays.

Pick a calculator (9)

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