Calculate age

How Old Am I?

Enter your date of birth and see exactly how old you are today.

Date of birth
Age on this date (blank = today)

Runs in your browser, nothing is stored  ·  Calendar-exact, leap years included  ·  Reviewed November 10, 2026  ·  How we calculate

How old am I? Your age is the time that has passed since your date of birth. Subtract your birth year from the current year, then subtract one more if your birthday has not happened yet this year. The calculator does this exactly, down to the day.

How to work out your age by hand

Take the current year and subtract your birth year. If your birthday has not yet come this year, subtract one. For months and days, count from your last birthday to today.

Example: someone born on 15 August 1990 is 36 years, 2 months and 26 days old on 10 November 2026. The year gap is 36, the birthday has passed, and 15 August to 10 November is 2 months and 26 days.

Why an exact age matters

Forms for school admission, passports, visas, exams, insurance and sports often ask for your age on a specific date. Use the second field to enter that date and get the right answer.

Frequently asked questions

How old am I if I was born in 1990?

In 2026 you are 36 if your birthday has already passed this year, or 35 if it has not. Enter your full date of birth for the exact figure.

How old am I in months?

Multiply your full years by 12 and add the extra months. 36 years and 2 months is 434 months.

When does my age go up?

Your age increases at the start of your birthday, in your local time zone.

Can I see how old I will be on a future date?

Yes. Enter the future date in the second field and the calculator shows your age on that day.

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