Age Calculator
Enter your date of birth to get your exact age in years, months and days, and the number of days until your next birthday.
Result
How age is calculated
The calculator counts full years first, then full months, then the remaining days, using the real length of each month and accounting for leap years.
Age on another date
Change the second field to find how old you were or will be on a specific date, such as a school enrollment cutoff, a retirement date or an eligibility deadline.
Frequently asked questions
What if I was born on February 29?
In non-leap years the calculation treats March 1 as the birthday.
Can I calculate someone else’s age?
Yes. Just enter their date of birth.
Is my date of birth stored?
No. The calculation runs in your browser and nothing is sent to a server.
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Results are estimates for informational purposes only and are not financial, tax, legal or medical advice.