Age Calculator
Find your exact age in years, months, and days from your birth date, using today or a date you choose.
Enter your details
Your result
Enter your details to calculate.
Worked example
Sample inputs
- Date of birth
- 1990-04-15
- Calculate age on
- 2026-04-15
Exact age: 36 years, 0 months, 0 days
- Date of birth: 15 April 1990
- Age calculated on: 15 April 2026
How this age calculator works
The calculator compares calendar dates and borrows days from the previous month when needed, so the result reflects calendar years and months rather than a rough 365-day estimate.
Frequently asked questions
Does the result account for leap years?
Yes. The date comparison uses calendar month lengths, including February in leap years.
Can I calculate age on a past date?
Yes. Choose any date in the “Calculate age on” field to calculate age as it was on that date.