Age Calculator
Your exact age in years, months and days from your date of birth, plus a countdown to your next birthday.
Runs in your browser. Your text and files never leave your device.
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- Total months
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- Total weeks
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- Total days
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- Next birthday in
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How to calculate your age
- Enter your date of birth.
- "Age on" starts at today; change it to check your age on another date.
- Read your age in years, months and days, plus totals and your next birthday.
Common uses
- Checking age limits for government jobs, exams and admissions on the cut-off date.
- Filling in forms that ask for age in years and months.
- Counting the days to a birthday or anniversary.
Counting days between any two dates? Use the days between dates calculator.
Frequently Asked Questions
How is age calculated?
Whole years first, then whole months, then the remaining days. If the birth day doesn't exist in a month (like the 31st in February), the month ends on its last day, the way most official age rules count it.
What about people born on 29 February?
In years without 29 February, the birthday is counted on 28 February. Some countries use 1 March for legal purposes; check local rules for official documents.
Can I find my age on a past or future date?
Yes. Change "Age on" to any date, for example an exam date or a job application deadline that has an age limit.
Is my date of birth stored?
No. The calculation runs in your browser and nothing is sent or saved.