Age Calculator
Pick your birth date and your age is calculated instantly in years, months and days. You'll also see the total days and weeks you've lived and how many days remain until your next birthday. Use the optional "as of date" field to find your age on any past or future date.
Frequently asked questions
How exactly is age calculated?
Your age is the number of full years since your birth date; the remainder is shown as months and days. If your birthday hasn't occurred yet this year, the year count is one less.
Can I find my age on a specific date?
Yes. Enter any date in the "as of" field and your age is calculated relative to it — useful for checking age requirements in official applications.
How is age handled for people born on February 29?
In non-leap years, the birthday of those born on February 29 is treated as March 1; the tool handles this automatically.