Age Calculator
Work out an exact age in years, months, and days.
Runs 100% in your browser — nothing is uploaded
Calculate an exact age from any date of birth — down to years, months, and days — plus totals in weeks, days, hours, and minutes, the weekday you were born, and a countdown to the next birthday. Runs instantly in your browser with no sign-up.
Frequently asked questions
How is the age calculated?
It counts the full years, then the remaining months, then the remaining days between the birth date and your chosen date — the same way people say their age in everyday life.
Can I calculate age on a future or past date?
Yes. Set the 'age at' date to any day to find out how old someone was, or will be, on that date.
Does it account for leap years?
Yes. The calculation uses real calendar dates, so leap years and differing month lengths are handled correctly.
Is my date of birth stored?
No. The calculation happens entirely in your browser and nothing is saved or sent anywhere.
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