Age Calculator

Find your exact age in years, months, and days as of today - plus how many days until your next birthday.

Live

Date of birth

Your age

Enter your birth date

Total days lived

Next birthday in

Calculated using today's date.

How this is calculated

Age = Today's date - Birth date, broken into full years, months, and remaining days

Example

Born June 15, 1990, as of July 19, 2026: age = 36 years, 1 month, 4 days. Total days lived ≈ 13,183. Next birthday is 331 days away.

Enter your date of birth.
Read your exact age in years, months, and days, calculated against today's date.
Check the total days lived and the countdown to your next birthday.

Simply subtracting birth year from current year - this overstates age by one if the birthday hasn't happened yet this year.

Forgetting leap years when estimating total days lived by hand - this calculator accounts for them automatically.

Does this account for leap years?

Yes - the total days lived and month-length calculations both correctly account for leap years automatically.

What if I was born on February 29?

In non-leap years, this calculator treats your next birthday as March 1, which is the most common convention for leap-day birthdays.

Is my birth date stored anywhere?

No - the calculation runs entirely in your browser, and nothing you enter is sent to a server or saved.