Age Calculator – Calculate Your Age
Enter your date of birth to instantly calculate your exact age in years, months, and days — plus days until your next birthday.
How to Use
- 1
Enter your date of birth in the input field
- 2
Click "Calculate Age" to see the result
- 3
View your exact age in years, months, and days
Frequently Asked Questions
How accurate is the age calculation?
The calculation is exact to the day, accounting for leap years and month lengths.
Can I calculate the age of someone else?
Yes — simply enter any birth date to calculate the age for that person.
How are leap years handled?
The calculator accounts for leap years automatically in all calculations.
Is my date of birth stored?
No — all calculations happen in your browser. Nothing is saved or sent to a server.
Work out an exact age
An age calculator works out how old someone is from their date of birth, down to years, months and days — and often the total days, hours or the next birthday. It saves you counting across months and leap years by hand.
Enter a birth date and an optional target date, and the result appears at once.
When the exact age matters
- Knowing your exact age for forms, eligibility or milestones.
- Calculating age gaps between two people.
- Counting down to the next birthday.
- Need the gap between any two dates? Use the date difference calculator.
Accurate and private
The calculation runs in your browser using full calendar rules, including leap years, and no dates are sent anywhere.