Age calculator
Calculate a calendar age on any chosen date, with an easy-to-read breakdown.
Not identity verification or proof of legal age.
How this works
The date of birth is subtracted from the selected reference date. Years and months are advanced with end-of-month clamping, then the remaining days are counted. The method is calendar-based, not an average-year approximation.
An example
From January 1, 2000 to January 1, 2025, the calendar age is 25 years, 0 months and 0 days.
Good to know
Can I calculate an age in the past?+
Yes, provided the reference date is not before the birth date.
Is this a legal age verification service?+
No. The entered dates are not verified and the result is not identity or eligibility evidence.
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