Everyday

Calculators for daily life: exact ages and dates, working days between two dates, body mass index and calorie needs, and splitting a bill fairly between friends.

Age calculator
Exact age in years, months and days, next birthday and age in days or hours.
Date calculator
Days between dates, add or subtract time, working days and ISO week numbers.
BMI calculator
BMI with WHO and Asian cut-offs, healthy weight range, BMR and daily calories.
Tip and bill split calculator
Add a tip and split a bill evenly or by items; shares add up to the cent.
Pomodoro timer
Focus and break cycles with a sound, a notification and the countdown in the tab.
Stopwatch and countdown timer
Stopwatch with laps and CSV, plus several countdowns with an alarm.