Enter your date of birth to see your exact age in years, months, and days as of today.
Calculating exact age
Age sounds simple until you need it precisely. Counting whole years is easy, but expressing age in years, months, and days requires walking the calendar carefully, since months have different lengths and leap years add a day every four years.
This calculator uses real calendar dates rather than a flat 365 day year, so the result correctly accounts for leap days and varying month lengths. Whole years are what most official forms request, while the months and days help with milestones and eligibility windows.
The reference point is today according to your device clock, so the figure reflects your local date. To measure the gap between any two specific dates instead, use the date duration calculator.
The formula
Worked example
Born 2000-01-01, as of a date in 2026 you would be 26 years plus the months and days since your last birthday.
How to read your result
Age in full years is what most forms ask for. The months and days help for milestones, eligibility, and precise record-keeping.
Frequently asked questions
- Does it account for leap years?
- Yes - the calculation uses real calendar dates, so leap days are handled.
- What time zone is "today"?
- Your device clock determines today, so the result reflects your local date.
- Can I find age on a future date?
- This page uses today; for a specific gap, use the Date Duration Calculator.
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