Age calculator
Work out an exact age in years, months and days, and in total days, weeks and hours, from a date of birth.
Good to know
Change To for an age on another date, like the age someone will be on a trip or the age at an event in the past.
How to use it
Put the date of birth in From; To is set to today. Figure shows the age in years, months and days, plus the total days, weeks, weekdays and hours. The page opens with a birthday of 1 January 1990. Nothing is uploaded and there is no account.
Good for:
- Your exact age, or a child's age in months
- Age on a future date, for forms and applications
- Days alive, for a milestone
- Ages of pets, buildings and anniversaries
Questions
How is age worked out?
Whole years first, then whole months, then the days left over, counted from the date of birth to the To date, so the answer matches how people say their age.
Does it count leap years?
Yes. It counts real calendar days between the two dates, so 29 February is included.
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