Find your exact age instantly
Enter your date of birth and this calculator shows your precise age in years, months, and days — not just a rounded number. It also tells you how many total days and weeks you've been alive and counts down the days to your next birthday.
Change the "age at date" field to work out your age (or anyone's) on any past or future date.
How age is calculated
We compare your birth date to the target date, borrowing days and months as needed (accounting for different month lengths and leap years), which is why the result matches how age is counted in everyday life.