Age Calculator
Work out an exact age in years, months and days from any birth date.
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What is the Age Calculator?
The Age Calculator works out your exact age from a date of birth — in years, months and days — along with the total number of days you've lived and how many days remain until your next birthday.
How to use it
- Enter your date of birth using the date picker.
- Your exact age appears instantly in years, months and days.
- Check the total number of days you've lived so far.
- See exactly how many days remain until your next birthday.
Features
- Precise years, months and days breakdown
- Total days lived counter
- Next birthday countdown
- Correct handling of leap years
- Future-date validation
- Fully responsive date input
Privacy
Your date of birth is processed entirely in your browser and is never sent to any server or stored anywhere.
Frequently Asked Questions
Yes, the calculation correctly accounts for leap years when determining the number of days in each month.
In non-leap years, your next birthday is calculated based on the calendar date, so the countdown remains accurate.