Formula & method
Age = current date − birth date, counted in completed years, then remaining months, then remaining days.
Worked example
Born 15 May 1990, on 30 October 2026 you are 36 years, 5 months and 15 days old. Your next birthday is 15 May 2027.
FAQ
- Why do age results differ between sites?
- Some sites count partial months differently or ignore leap years. This calculator counts completed calendar years, months and days.
- Can I compare two dates?
- Yes: enter any two dates and the tool reports the gap in years, months and days, plus total days.
- Does it handle leap years?
- Yes. The date math uses real calendar dates, so 29 February birthdays are handled correctly.
Search-volume figures on this site are public third-party estimates from research done in October 2026, not exact Google data. High search volume does not guarantee clicks: Google often answers calculator and conversion queries directly in the search results.