Age Calculator
Calculate your exact age in years, months and days from your date of birth, or find the difference between any two dates. Free, instant age and date calculator.
Age & date difference calculator
Find your exact age, or the precise gap between any two dates, broken down into years, months and days. It also shows totals in days, weeks and hours — handy for birthdays, anniversaries, deadlines and project planning.
Frequently asked questions
How is age calculated?
The calculator counts complete years, then remaining months, then remaining days between your date of birth and the 'as of' date — the same way age is normally counted.
Can I find the time between two arbitrary dates?
Yes. Put any start date in 'Date of birth' and any later date in 'As of', and you'll get the exact difference in years, months and days plus totals.
Does it handle leap years?
Yes. It uses real calendar dates, so leap years and varying month lengths are accounted for automatically.