How the age calculator works
This tool compares your date of birth with today’s date (or any date you choose) and works out the exact difference. Because it uses the real calendar, it automatically handles leap years and the fact that months have different numbers of days — so the result is accurate, not just an estimate.
You’ll see your age broken down in three useful ways: your age in years, months and days, the total number of days you have lived, and the countdown to your next birthday.
What can you use it for?
- Filling in forms that ask for exact age.
- Checking eligibility by age (school, jobs, IDs, and more).
- Fun facts — how many days old you are today.
- Working out the age gap between two people or two dates.