Age Calculator: Calculate Your Exact Age in Years, Months, and Days
Calculate your exact age or anyone's age in years, months, weeks, and days. Find out the next birthday countdown and how many days you've been alive.
How Age Is Calculated
Age is calculated by subtracting the birth date from the current date, accounting for whether the birthday has occurred yet in the current year.
For people born on February 29 (leap day), their birthday is typically celebrated on February 28 or March 1 in non-leap years. This calculator uses February 28 by default.
How to Use the Age Calculator
Enter your birth date
Select or type your date of birth.
Set the target date
Default is today's date for current age. Change to any date for age-at-a-date calculations.
Click Calculate
See exact age in years, months, days, total days, weeks, hours, and minutes.
Real-World Scenario Example
"Born on March 15, 1990. As of May 31, 2026, age = 36 years, 2 months, 16 days = 13,226 days alive."
Inputs
Result
36 years, 2 months, 16 days | 13,226 days alive
Important Disclaimer
Age calculations are based on the Gregorian calendar and the current UTC date. Results may differ slightly by timezone. For legal age verification purposes, consult official documentation.
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