Quick answer
Enter a date of birth, and the calculator shows the exact age today in years, months and days, along with total months, weeks, days and hours, the weekday you were born on, and how many days remain until the next birthday.
- Shows:
- Years, months, days + totals
- Custom date:
- Yes – age on any date
- Extras:
- Birth weekday, next birthday
- Price:
- Free
- Sign-up:
- Not required
- Privacy:
- Calculated in your browser
Forms, visas, school admissions, insurance and sports leagues often need an exact age on a specific date. Our age calculator handles month lengths and leap years for you, so the answer is always precise.
How to use Age Calculator – step by step
- 1 Enter the date of birthUse the date picker or type the date.
- 2 Optionally change the “age on” dateIt is today by default. Set another date to find the age on that day.
- 3 Read the resultsYour age and the totals update instantly.
Why use our Age Calculator?
Leap-year accurate
Correctly handles 29 February and months of different lengths.
Age on any date
Check eligibility cut-off dates for school, sports or visas.
Fun facts
See the day of the week you were born and days until your next birthday.
Private
Dates are not sent or stored anywhere.
How age is calculated
We count complete years first, then complete months, then the remaining days. If the day of the month hasn’t been reached yet, we borrow the number of days from the previous month — the same method most official forms use.
Need other quick maths? Try the Percentage Calculator.
Frequently asked questions
How do I calculate my exact age?
Can I calculate age on a specific date?
How are leap years handled?
What if I was born on 29 February?
Last updated November 2026 · Written and tested by the SmallEasyTools team.