Find your exact age in years, months and days — plus a countdown to your next birthday.
Your age
31 years, 0 months, 0 days
🎉 0 days until your next birthday
This age calculator works out exactly how old you are — not just in years, but in years, months, and days — from your date of birth to today or any date you choose. It also shows your age expressed as total months, weeks, days, and hours, and counts down the days to your next birthday. It is handy for forms that need an exact age, for working out eligibility cutoffs, or just for curiosity.
The calculation correctly handles leap years and varying month lengths, so the result matches how age is counted in everyday life. Everything runs locally in your browser — your date of birth is never sent anywhere.
Full Guide Available
How date differences, business days, exact age, and countdowns are calculated — including leap years and month lengths.
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