Find your exact age in years, months and days.
This calculator finds the precise difference between two dates in years, months, and days — accounting for varying month lengths and leap years, which a simple date subtraction can get wrong. It's useful for eligibility checks (many government forms, exams, and loan applications require an exact age on a specific reference date), or just to know exactly how long until your next birthday.
The calculation works by comparing year, month, and day components separately, borrowing from the previous month when the day count would otherwise go negative — the same logic used in most official age-verification calculations.
Leap years add an extra day roughly every 4 years, so the exact number of days in your life doesn't divide evenly by 365 — this calculator counts actual calendar days between the two dates, leap years included.
Generally yes — most official age calculations use the same year/month/day method as here, calculated as of a specific reference date (like the exam date or application deadline) rather than today's date.
Yes — change the 'As of Date' field to any date you need, useful for checking age eligibility as of a specific deadline or event date.