Date and age calculators
Simple, private calculators for working out ages, countdowns and the time between dates. Everything runs in your browser and nothing you enter is stored.
Age in Days Calculator
How many days old you are today, plus the dates of your 1,000th, 5,000th and 10,000th day.
Age in Weeks Calculator
Your age in full weeks, plus the leftover days, months, hours and minutes.
Age in Hours Calculator
A live counter of the hours, minutes and seconds you have been alive, with optional birth time.
Days Between Dates Calculator
Count the days, weeks and weekdays between any two dates, with an option to include the end date.
Days Until Calculator
Count down the days to any date, with one-tap presets for Christmas, New Year, Valentine's Day and Halloween.
Days Since Calculator
Count the days, weeks and months since any date, and see when the next 100-day mark and anniversary fall.
Life in Numbers calculator
Heartbeats, breaths, steps and blinks since you were born, counted live.