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Randozi

Age Calculator

Enter a birth date and see exactly how old someone is today — or on any other date you choose.

Exact age

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How it works

  1. Pick the date of birth.
  2. Leave “Age as of” on today’s date, or change it to find someone’s age on a past or future day.
  3. Read the exact age in years, months and days, the same age as a total of months, weeks and days, and how many days remain until the next birthday.

What people use it for

  • Forms and applications

    Check an exact age for an application, a school cutoff date or an age-restricted sign-up.

  • Birthdays and milestones

    See how many days are left until the next birthday, or when someone turns 10,000 days old.

  • Babies and pets

    Track a baby’s or a puppy’s age in months and weeks, the way doctors and vets count it.

Questions

How is the exact age calculated?
The calculator counts the whole years and months since the birth date, then the days left over. When the birth day doesn’t exist in a month (the 31st, for example), the last day of that month counts as the monthly anniversary.
What if someone was born on February 29?
In years without a February 29, the birthday is counted on February 28. So a person born on February 29, 2000 turned 1 on February 28, 2001, and the countdown to the next birthday follows the same rule.
Does the time zone change the result?
No. Only calendar dates are used, never clock times, so daylight saving time and time zones can’t shift the result by a day. “Today” is the date shown on your device.