Age Calculator
Find your exact age in years, months, and days — and see how long until the next birthday.
How it works
Enter a date of birth and we'll calculate the exact age in years, months, and days. Optionally set a different "as of" date to find out how old someone was — or will be — on a specific day.
Examples
Filling out a form that asks for exact age, curious how old you'll be on a future date, or working out someone else's age for a card or gift? This tool covers all of it.
Related tools
Frequently asked questions
- How is exact age calculated?
- We work out the whole number of years, months, and days between your date of birth and today (or another date you choose), accounting for varying month lengths and leap years.
- Can I calculate age on a date other than today?
- Yes. Use the optional second date field to calculate age as of any past or future date.
- Does this tool tell me when my next birthday is?
- Yes — alongside your exact age, the result shows the date of your next birthday and how many days remain until it.
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