About the age calculator
An age calculator tells you exactly how old you are - in years, months and days - between your date of birth and any chosen date. It also breaks your age down into total months, weeks, days and hours, and counts down to your next birthday.
How your age is calculated
We subtract your date of birth from the comparison date, carefully handling months of different lengths and leap years so the day count is always accurate. The result is your precise age, not a rounded estimate.
Common uses
- Check eligibility for exams, jobs, visas or retirement schemes.
- Find your age on a specific past or future date.
- Count down the days to your next birthday or milestone.
- Work out the exact gap between two important dates.