Age Calculator
Enter a date of birth. Leave the second date empty to use today.
Fill in the fields — the answer appears as you type.
Think an answer is wrong? Report it with your inputs.
How it's calculated
- Age = completed years, then completed months, then remaining days between the two dates
Worked example
Born 15 August 2000, on 11 October 2026: 26 years, 1 month, 26 days.
Load this example into the calculatorAssumptions and limits
- Calendar dates in UTC; the time you were born isn't considered.
- Born on 29 February: birthdays fall on 1 March in non-leap years.
Common questions
Checking eligibility for an exam?
Use the age-on-cutoff-date calculator, which also checks minimum and maximum age limits.