All Tools / Calculators
Age Calculator
Exact age in years, months and days, with a live next-birthday countdown.
How to use
- Enter the date of birth.
- Keep "Calculate up to today" checked, or uncheck it to pick any target date.
- See exact age, totals and the countdown to the next birthday instantly.
Frequently asked questions
How is exact age in years, months and days calculated?
The tool compares calendar dates directly - first years, then months, then remaining days - so a birth on Feb 10, 2000 is exactly 26 years, 5 months and 21 days on Aug 1, 2026, accounting for different month lengths automatically.
Can I calculate age at a specific date?
Yes. Uncheck "Use today" and pick any target date - useful for contract dates, school enrollment cutoffs or historical events.
Does it handle leap years?
Yes. All calculations use the JavaScript Date API, which handles leap years, February 29 births and month-length differences correctly.