Find your exact age
Knowing you're "about 34" is easy; knowing your age down to the day takes careful counting across leap years and months of different lengths. This calculator does that precisely, giving your age in years, months, and days from your date of birth to today or any date you choose — handy for forms, milestones, or settling how old someone is to the day.
How to use it
- Enter the date of birth.
- Optionally set an end date other than today.
- Read the exact age in years, months, and days.
Where it's useful
- Filling in a form that needs an exact age.
- Counting down to a birthday or milestone.
- Working out an age at a specific past or future date.
Questions people ask
Does it handle leap years? Yes — it counts real calendar days, so February 29th and varying month lengths are accounted for.
Is my date of birth stored? No — the calculation happens in your browser.