Age Calculator
Free age calculator. Enter your date of birth to find your exact age in years, months, and days — on today's date or any date you choose.
Pick a date of birth on or before the “age at” date.
Calculate your exact age
This calculator finds the precise time between your date of birth and any date you choose — by default, today. It breaks your age down into years, months, and days, and also shows the totals in months, weeks, and days.
Leap years and calendar math
Because the calculation uses real calendar dates, leap years and varying month lengths are handled automatically, so the day count is always exact.
Frequently asked questions
How does the age calculator work?⌄
It counts the exact years, months, and days between your date of birth and today (or any date you choose).
Can I calculate age on a future date?⌄
Yes. Change the 'age at' date to any date in the past or future to see how old someone is or will be then.
Does it account for leap years?⌄
Yes. The calculation uses real calendar dates, so leap years are handled automatically.
Have another question? Get in touch.