🎂Age Calculator: Exact Age in Years, Months & Days
Pop in a birth date to see your exact age in years, months and days — plus a countdown to your next birthday.
You are
— check your dates
The birth date needs to come before the second date.
Born on February 29? In non-leap years I count your birthday on February 28.
How it works
We count full years first, then full months, then leftover days. If the day hasn't come around yet this month, we borrow the days from the previous month — the same way you'd work it out on paper. Then we find your next birthday and count the days until it.
Worked example
Born June 15, 1990, checked on March 3, 2026:
- Years: 2026 − 1990 = 36, but June hasn't happened yet → 35 years
- Months: June → February = 8 months
- Days: February 15 → March 3 = 16 days
So you're 35 years, 8 months and 16 days old, with 104 days until you turn 36.
Questions people ask
Full years first, then full months, then the remaining days — borrowing days from the previous month when needed.
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Last updated September 28, 2026. These results are friendly estimates to help you plan — always double-check before buying or making big decisions.