Age Calculator
Calculate exact age in years, months and days from a birth date.
How to use Age Calculator
- 1Enter your date of birth.
- 2Optionally change the 'as of' date (defaults to today).
- 3See your exact age broken down instantly.
Why use this tool
- Shows age in years/months/days plus total days, weeks and months lived.
- Useful for eligibility checks, forms and curiosity alike.
- Handles leap years correctly.
Frequently asked questions
Does this account for leap years?
Yes, the calculation uses real calendar dates via JavaScript's Date object, so leap years are handled automatically.
Can I calculate age as of a future or past date?
Yes, change the 'Calculate age as of' field to any date you need.