How to Calculate & Formula Details
Difference in calendar dates, adjusting for leap years and variable month lengths.An age calculator computes your exact age or the time elapsed between two specific dates. It provides a detailed breakdown of your age in years, months, days, weeks, and even down to the seconds, which is much more precise than just subtracting the birth year.
Adjusting for Leap Years
Our age calculator automatically accounts for leap years (which occur every four years and add an extra day, February 29th) as well as the varying lengths of the months (28, 30, or 31 days) to give you an exact calculation.