This works out your precise age today — in years, months and days — from your date of birth, and also shows your age in total days and weeks. It handles month lengths and leap years for you. Handy for forms, birthdays, milestones, or simply satisfying curiosity about exactly how long you have been around.
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Frequently asked questions
How is age in months and days worked out?
It counts the full years, then the remaining months and days to today, adjusting for different month lengths and leap years so the result is exact.
Can I use it for any date?
Yes — enter any past date of birth. The calculator updates the moment you change it.