TOOLS · AGE CALCULATOR
Work out your exact age.
Enter a date of birth to get the exact age in years, months, and days as of today (or any date you choose) — plus total days lived and days until the next birthday.
Why Your Exact Age Isn't Just Subtraction
Subtracting birth year from the current year gives you an age in whole years, but it ignores whether your birthday has actually happened yet this year, and it can't tell you how many months and days you are past your last birthday. Getting the exact breakdown right means accounting for varying month lengths and leap years, not just subtracting two numbers.
How This Tool Works
Enter a date of birth and this calculates your age broken down into years, months, and days as of today (or any other date you choose), along with the total number of days you've been alive and how many days remain until your next birthday. All of it happens locally in your browser.
Common Uses
- Working out someone's exact age for a form that asks for years, months, and days rather than just years.
- Checking how many days remain until an upcoming birthday.
- Calculating age as of a specific past or future date, not just today.
Frequently Asked Questions
Does this account for leap years?
Yes — the calculation is based on actual calendar dates, so leap years and varying month lengths (28 to 31 days) are handled correctly rather than assumed to be a fixed 365.25 days per year.
Can I calculate age as of a date other than today?
Yes — you can set the "as of" date to any date you choose, useful for things like calculating someone's exact age at a specific event in the past or future.
Why does the months/days breakdown look different from a simple year subtraction?
A simple year subtraction (like 2026 − 1995) only tells you whole years and ignores whether the birthday has happened yet this year. This tool calculates the precise number of full years, months, and days that have actually elapsed, which is a more exact — and slightly more involved — calculation.