Age Calculator — Calculate Your Exact Age
Calculate your exact age in years, months and days — the way official forms and exams count it. “How old am I?” sounds trivial until an application asks for your age as of a specific date, or you need someone's exact age difference in months and days. Enter a date of birth (and optionally an “as of” date) and this calculator instantly returns your age in years, months and days, along with total weeks, days and hours lived, your next birthday countdown, and the day of the week you were born on. It correctly handles leap years, month lengths and every edge case — no mental math required.
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How to calculate your age online for free
- 1
Select your date of birth using the date picker.
- 2
Optionally change the “Calculate age on” date — leave it as today for your current age.
- 3
Read your exact age in years, months and days, plus the summary cards.
- 4
Check the next-birthday panel to see how many days remain until your next celebration.
Why use this age calculator tool?
Precise years, months, days
The same month-by-month arithmetic used on official forms — accurate across leap years and uneven month lengths.
Age at any date
Not just today: set any “as of” date to compute age at exam deadlines, retirement dates or historical events.
Next birthday countdown
See exactly how many days, hours and minutes remain until your next birthday, plus which weekday it falls on.
Lifetime statistics
Total months, weeks, days, hours and minutes lived since the day you were born — computed instantly.