Age Calculator

Free online age calculator. Enter date of birth and reference date to get exact age in years, months, and days, total days lived, and next birthday countdown.

Age Calculator

Calculation Results

About Age Calculation

This tool calculates age by calendar difference, not by simple day division.

  • Exact age is shown as years, months, and days.
  • It also provides total days, weeks, and full months lived.
  • Countdown to next birthday helps planning reminders.

Notes:

  • Leap years are handled automatically.
  • All calculations happen in your browser.