Free Age Calculator — Calculate Age in Years, Months, Days

Birth date

Year Month Day

End date (optional — default: today)

Year Month Day

How to use the age calculator

Enter your birth date (year, month, day).
Optionally enter an end date. If left blank, we use today.
Click Calculate age. You’ll see age in years, months, and days, plus total days.

Useful for knowing exact age for forms, eligibility, or curiosity. We compute the difference between two dates and don’t store any of your data.

How is age calculated?

We compute the difference between your birth date and the end date (today or a date you choose), giving years, months, and days.

Can I use a future birth date?

No. The birth date must be in the past. The end date can be today or any date after the birth date.

Is my birth date stored?

No. Dates are only used for the calculation and are not saved on our servers.