Please select a valid Date of Birth that is earlier than the target date.
How to Use Age Calculator
Calculate your precise chronological age in years, months, and days from your date of birth. See total days, weeks, and hours lived, as well as a countdown to your next birthday with the day of the week it falls on.
Frequently Asked Questions
Yes! Change the "Calculate Age As Of" target date to see how old you will be on any future date.
The calculator uses JavaScript native calendar date math, which automatically accounts for leap years and varying month lengths.