Date Difference and Age Calculator

Days between two dates, converted into years, months and days

Start date
End date (blank = today)

How to use

Pick a start and an end date to get the day count plus a years/months/days breakdown. Leave the end date empty to use today - that turns it into an age calculator.

FAQ

Calendar days or business days? Calendar days - weekends and public holidays are included.

Privacy: every calculation runs inside your browser. Your files and text never leave your device.