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Age Calculator
Find your exact age in years, months and days, plus total days lived and a countdown to your next birthday. Free, no sign-up.
How to Calculate Your Age
Enter Your Date of Birth
Pick the day you were born. Your age appears straight away.
Choose the Date
Age is worked out for today. Pick another date to see how old you were or will be then.
Share or Explore
See total days and weeks, your next birthday and star sign, then share the result.
Frequently Asked Questions
How is exact age worked out?
We count whole years, then whole months, then the days left over. Months are counted to the same date in the next month, so different month lengths are handled correctly.
What if I was born on 29 February?
In years without a 29 February, your birthday is counted on 28 February. In leap years it falls on 29 February as normal.
Can I find my age on a past or future date?
Yes. Change the Age At date to any day after your birth date. Press Use Today to go back to today.
How are total days counted?
Total days is the exact number of days from your birth date to the chosen date. Leap days are included.
Which star sign system is used?
Western (tropical) zodiac dates, for example Aries from 21 March to 19 April. Dates on the edge of two signs can vary by a day from year to year.
Is my birth date stored?
No. Everything is worked out in your browser and nothing is sent or saved.