Age Calculator
Work out an exact age in years, months and days — plus how long until the next birthday.
Age
Exact age
31 yr 2 mo 16 d
Born on a Thursday
- Total days
- 11,400
- Total weeks
- 1,628
- Total months
- 374
Next birthday
15 Jun 2027 — 288 day(s) to go.
How this tool works
The number of whole years, then whole months, then remaining days between the two dates is counted using real calendar lengths. Total days, weeks and months are derived from the same span.
Frequently asked questions
- How is age calculated?
- Calendar months and days are counted from the date of birth to the chosen date, borrowing days from the previous month where needed.
- Can I calculate age on a future date?
- Yes. Change the 'age on' date to any date after the birth date.
- Are leap years handled?
- Yes. Real calendar dates are used, so leap days are counted correctly.