Age Calculator

Calculate your exact age in years, months, and days. Free online age calculator with birthday countdown.

Select your birth date

How It Works

  1. Enter your date of birth using the date picker.
  2. Your exact age in years, months, and days appears instantly.
  3. See the total number of days, hours, and minutes you have lived.
  4. Copy any result with one click.

Formula

Age = Current Date − Birth Date

Example

Input: Date of birth: 15 May 1990
Result: Age: 35 years, 11 months, 12 days

FAQ

Very accurate — it accounts for leap years and varying month lengths to give the exact number of years, months, and days.

Yes — enter any past date to find the age of a building, document, or event.

No. All calculations run in your browser. No data is sent to or stored on our servers.

Any date from 1 AD up to today is supported.