Age Calculator

Enter your date of birth to see your exact age broken down into years, months, and days. The calculator also shows the total number of days you've been alive and your next birthday with a countdown.

The age is calculated based on today's date using calendar arithmetic — it accounts for varying month lengths and leap years. For example, someone born on February 29th will see their next birthday adjusted to March 1st in non-leap years.

Want to calculate the duration between any two dates? Try the Date Calculator for a more general tool.