Age Calculator
Find an exact age in years, months and days.
About the Age Calculator
The Age Calculator works out exactly how old someone is — or how much time has passed since any date — in years, months and days, plus the total number of days. It correctly accounts for different month lengths and leap years, so the result is precise rather than an approximation. Use it for birthdays, anniversaries, project durations or eligibility checks.
How to use it
- Choose a birth date or any starting date.
- Click Calculate.
- See the exact age broken down into years, months, days and total days.
Frequently asked questions
Does it account for leap years?
Yes. The calculation uses real calendar dates, so leap years and varying month lengths are handled correctly.
Can I measure the time between two dates?
This version measures from your chosen date to today. Use it on any start date to get the elapsed duration up to the current day.
Is the date stored?
No. The calculation happens in your browser and nothing is saved or sent anywhere.
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