Age Calculator
Enter a date of birth to get the exact age today, or on any other date, in years, months and days. You'll also see the age in months, weeks and days, the weekday you were born on and how long until the next birthday.
How to calculate your age
- 1Pick the date of birth.
- 2Leave “Age on” as today, or pick another date, such as an exam or job cut-off date.
- 3Read the exact age and the other details.
Counted like a birthday
Whole months are counted first, then the days left over, the same way people count birthdays. Someone born on 31 January turns one month old on the last day of February.
Age on a specific date
Forms for exams, jobs and school admissions often ask for your age on a cut-off date. Set “Age on” to that date to get the exact figure they ask for.
Leap-year birthdays
For people born on 29 February, the next birthday in a non-leap year is shown on 28 February. Total days always count leap days exactly.
Frequently asked questions
- Is my date of birth stored?
- No. The calculation runs in your browser and nothing is saved or sent.
- Does it account for leap years?
- Yes. Every calendar day is counted, including 29 February in leap years.
- Can I calculate the age of something other than a person?
- Yes, for anything with a start date: a company, a pet or a building.