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Dates & Time

Age Calculator

Calculate an age in years, months and days from a date of birth to a selected date.

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HOW IT WORKS

How the Age Calculator works

1

Enter date of birth

Choose the birth date you want to measure from.

2

Choose the date to calculate on

Use today or select another date for a historical or future age calculation.

3

View the age breakdown

See completed years, months and days plus the total number of calendar days.

COMMON QUESTIONS

Frequently asked questions

How is age calculated?

The calculator counts completed calendar years, then completed months, then remaining days.

Can I calculate age on a future date?

Yes. Change the calculation date to any valid date on or after the date of birth.

Does it handle leap years?

Yes. Date arithmetic uses real calendar dates, including leap years.

Is this suitable for legal age eligibility?

It is a general calendar calculation. If an exact legal eligibility date matters, check the rule that applies to the relevant scheme or law.

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