Age Calculator

Enter a date of birth to find the exact age in years, months and days, plus the total days lived and how long until the next birthday.

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How the age calculator works

The calculator finds the difference between your date of birth and the chosen date, breaking it into full years, remaining months, and remaining days โ€” the same way you'd naturally say your age. It also counts the total days you've been alive and shows when your next birthday falls.

Does it handle leap years?

Yes. It uses real calendar dates, so leap years and varying month lengths are accounted for automatically.

Is my date of birth stored?

No. The calculation happens in your browser and nothing is saved or sent anywhere.