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Find your exact age in years, months, and days — plus total days lived and a countdown to your next birthday.
Plenty of forms ask for an exact age rather than just a birth year, and eligibility rules — for a visa, a competition, or a school cut-off date — often hinge on how old someone will be on a specific future date, not today. This calculator works out both cases with real calendar math, calculated instantly in your browser.
Fill in the "Date of birth" field with the day, month, and year.
Leave "Age at date" blank to measure against today, or set it to see how old someone was, or will be, on any other date.
Instantly get age in years, months, and days, totals in months, weeks, days and hours, and a countdown to the next birthday.
Runs in your browser — nothing uploaded
Years, months, and days
Countdown to your big day
No registration required
Enter your date of birth and click Calculate. You instantly see your age in years, months, and days, plus total days and your next birthday. Completely free.
Yes. By default it uses today, but you can set the "age at date" field to find how old someone was or will be on any date.
Yes. The calculation uses real calendar dates, so leap years and varying month lengths are handled correctly.
No. The calculation happens entirely in your browser. Your data is never uploaded — guaranteed privacy.
It finds the next occurrence of your birth month and day from the chosen date and counts the days remaining until then.
Total days adds up every day you have lived, which becomes a large number — a fun way to see your age in different units.