Calculate your exact age in years, months and days from a date of birth.
The exact age counts completed years first, then the leftover months and days since the most recent birthday, correctly handling shorter months like February. Knowing the precise split between years, months and days matters for school enrollment, contracts and milestone planning.
Age
Age = years between birth and today = (current - birth) adjusted for whether the birthday has passed yet; remainder days fall out of the partial month
Age = years between birth and today = (current - birth) adjusted for whether the birthday has passed yet; remainder days fall out of the partial month The exact age counts completed years first, then the leftover months and days since the most recent birthday, correctly handling shorter months like February.
Knowing the precise split between years, months and days matters for school enrollment, contracts and milestone planning.
This calculator takes 6 inputs: Birth year, Birth month, Birth day, Current year, Current month, Current day. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.