What is an age calculator?
Exact age is counted as complete years since the date of birth, then complete months, then remaining days, borrowing the number of days in the previous month when needed.
Features
- Age on today or any date
- Years, months and days
- Total months, weeks and days
- Days to next birthday and day of the week you were born
How to use the age calculator
- Enter the date of birth.
- Keep today's date, or set the cut-off date from your form.
- Read the exact age and totals.
Checking age limits
Recruitment notices usually state age "as on" a specific date, such as 1 August. Enter that date in the second box; a candidate qualifies only if the age on that date is within the limit.
Frequently asked questions
How is a 29 February birthday handled?
In non-leap years the next birthday shows as 1 March, which is how most date systems treat it.
Last updated 15 November 2026. Made by Criza Labs. Spotted a mistake? Tell us.