Utility

Age Calculator

Find out exactly how old you are down to the day.

Your Exact Age
0 Years, 0 Months, 0 Days
Total Months
0
Total Weeks (Approx)
0
Total Days
0

How Age Is Calculated

Age calculation seems simple but has nuances — particularly around leap years and month-end dates. Most calculators use the "completed years/months/days" method for consistency.

Age Milestones Reference (US)

Interesting Age Facts

How is age calculated for a leap year birthday?

For people born on February 29, most legal systems recognize their birthday on either February 28 or March 1 in non-leap years. In the US, the general practice is February 28 for age-related thresholds. Some people prefer March 1 as their "official" celebration day.

What does "exact age" mean vs. "age in years"?

Age in years (whole number) is what you'd say when asked your age. Exact age includes the remaining months and days: "28 years, 7 months, and 12 days old." Exact age is used for legal purposes, medical contexts (pediatric dosing), and for curiosity about how many days you've been alive.