1. Home
  2. Everyday Tools
  3. Age Calculator

Age Calculator

Calculate your exact age in years, months and days from your date of birth, along with total days, weeks and hours lived and a countdown to your next birthday.

Runs locally in your browser. Your files and data are never uploaded or stored.

About the Age Calculator

The Age Calculator tells you exactly how old you are, or how old someone will be on a specific date, in years, months and days. It correctly handles leap years and months of different lengths, so the result matches what you would count on a calendar.

Beyond your age, it shows the total number of months, weeks, days, hours and minutes you have lived, the day of the week you were born, and how many days remain until your next birthday. It is useful for filling out application forms that ask for age on a specific date (such as job, visa, exam or school admission cut-off dates), planning celebrations, or simply satisfying curiosity.

How to use the Age Calculator

  1. Enter the date of birth.
  2. Optionally change the "Age at date" to calculate age on a specific day.
  3. Read your exact age in years, months and days.
  4. Check the totals and your next birthday countdown.

Frequently asked questions

How do I calculate age on a specific date?

Change the Age at date field to the required date, for example an exam or job application cut-off date.

Does it account for leap years?

Yes. The calculation uses real calendar dates, including February 29 in leap years.

What if I was born on February 29?

In non-leap years, your birthday is treated as March 1 for the next-birthday countdown.