Age Calculator: Find Your Exact Age
Enter a birth date and an “age on” date to calculate completed years, months, and days. The result is calculated in your browser; no account is required.
Your exact age
- Total days
- Next birthday
How this age calculator works
The calculator compares the date of birth with your selected calculation date, counts complete calendar years and months, then counts remaining days. It also reports the elapsed calendar-day total. This gives a clear answer to “How old am I?” for today or another date.
Quick answer
Your exact age is the number of complete years, months, and days between your birth date and the selected “age on” date.
Frequently asked questions
How do I calculate my exact age?
Enter your date of birth and the date to calculate your age on. The calculator returns completed years, months, and days, plus the total number of days lived.
Can I calculate my age on a date in the past or future?
Yes. Choose any valid date in the Age on field. The selected date must be on or after your date of birth.
How are leap-day birthdays handled?
For age calculations, a February 29 birthday is treated as February 28 in a non-leap year when a calendar-year anniversary is needed.
Is my birth date sent to a server?
No account is needed. The calculation runs in your browser, and the calculator does not send your date of birth to a server.