How is the age calculated?

The calculator computes the exact difference between your date of birth and today, accounting for varying month lengths and leap years.

What does 'Total Days' mean?

Total Days shows the complete number of days you have been alive from your date of birth to today.

It counts the number of days from today until your next birthday. If your birthday is today, it shows 'Today!'.

No. All calculations happen locally in your browser. Your data never leaves your device.

Enter your date of birth to see your exact age and countdown to your next birthday.

Date of Birth

Step 1

Enter your date of birth using the date picker.

Step 2

Your exact age appears instantly in years, months, and days.

Step 3

View additional stats like total days alive.

Step 4

See how many days until your next birthday.

Exact age in years, months, and days.

Total number of days alive.

Countdown to your next birthday.

Handles leap years and varying month lengths.

Completely free with no sign-up required.

: The calculator computes the exact difference between your date of birth and today, accounting for varying month lengths and leap years.
: Total Days shows the complete number of days you have been alive from your date of birth to today.
: It counts the number of days from today until your next birthday. If your birthday is today, it shows 'Today!'.
: No. All calculations happen locally in your browser. Your data never leaves your device.