Age calculator: how old am I exactly?

Your exact age in years, months and days, and the same number counted in weeks, days and hours.

How the age calculator works

It counts complete years since your birth date, then complete months, then the remaining days, using the calendar as it really is: months of different lengths and leap years included. Days, weeks and hours are counted from midnight on your birth date to midnight today, so the hour count is an approximation.

Why your age in days can surprise you

A 30-year-old has lived roughly 10,950 days. Most people have never seen that number, which is why it is fun to check and to share.

Born on February 29?

Leap-day birthdays happen only in leap years. In other years this site uses February 28 for your birthday. Some people celebrate on March 1 instead; both are common.

More calculators

All 12 answers at once →

Age calculatorYour exact age in years, months and days, and the same number counted in weeks, days and hours.Day you were bornFind the weekday of your birth date, and see what day your birthday falls on for the next eight years.Birthday countdownDays until your next birthday and half birthday, plus the weekday of your birthday in coming years.Days aliveYour age in days, and the exact dates of your milestone days, including your 10,000th day.Zodiac signYour Western zodiac sign by birth date, and your Chinese zodiac animal by birth year.Chinese zodiacYour Chinese zodiac animal by birth year. The cycle repeats every 12 years.BirthstonesYour birthstone and birth flower, by birth month.Birth flowersYour birth flower and birthstone, by birth month.GenerationBoomer, Gen X, Millennial, Gen Z or Gen Alpha, by birth year.Planet ageA year is one trip around the Sun. Other planets take more or less time, so your age changes.Days between datesCount the days between any two dates.Holiday countdownDays until Christmas, Thanksgiving, New Year and more.