Age Calculator

Find an exact age in years, months and days from a date of birth.

Enter values

Date of birth

Age at date

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age = (reference date) − (date of birth)

All calculations run locally in your browser and update instantly as you type.

How is exact age calculated?+

We count full years, then remaining months, then remaining days between the two dates, accounting for varying month lengths and leap years.

All calculations run locally in your browser. Nothing you type is sent to a server.