How to use it
- Enter the date of birth.
- Leave “Age on” as today, or pick another date (useful for forms that ask the age on a given day).
- Read the age and the other numbers below.
Questions and answers
How is the exact age calculated?
Full years are counted first, then full months, then the remaining days, the same way forms and documents do. Someone born on 15 March turns one year older every 15 March.
What about birthdays on 29 February?
In years without 29 February, this calculator shows the next birthday on 1 March.
Is my date of birth saved?
No. The calculation runs in your browser and nothing is sent or stored.