How to use
- Enter the required information.
- Choose any available options.
- Click the button to view your result.
- Copy the result if needed.
This tool is free to use without registration. See our Privacy Policy · Terms.
How an age calculation works
The calculator compares the date of birth with the selected current date and expresses the elapsed time as complete years, remaining months and remaining days. This is a calendar calculation, not simply the number of days divided by 365. Leap years and the different lengths of calendar months can affect the result.
Check the dates before using the result
- Enter the date of birth in the correct day, month and year.
- Check that the date is not in the future.
- For an official form, follow the organisation's definition of age and its required reference date.
The result is a general date calculation. It does not establish legal eligibility, identity or entitlement; official rules may define age differently for a particular purpose.