all the tools.

Calculate your exact age from your date of birth.

Calculate your attendance and see how many classes you can still miss.

Calculate body mass index from height and weight.

See how money grows when interest keeps earning interest.

Calculate days between dates or jump forward and backward in time.

See exactly how long you've known someone.

Calculate percentages, changes, increases, decreases and differences.

Split rent fairly when rooms, sizes and situations aren't equal.

See how much of your year disappears into your screen.

See how much sleep you've been borrowing from yourself.

Split a bill between friends without awkward mental maths.

Roughly estimate streaming revenue from Spotify plays.

Convert common measurements without hunting through menus.