What day of the week was I born?

You can find this using JavaScript's Date object or a calendar. Many people enjoy finding out they were born on a particular day — for instance, if your birthday was a Monday, Tuesday, etc.

How many days old am I?

Multiply your age in years by 365.25 (accounting for leap years). For example, if you're 30 years old, you're approximately 10,957 days old. Our calculator estimates this in the result.

What is the legal age for different activities?

In the US: 16 to drive, 18 to vote and sign contracts, 21 to drink alcohol. These vary by country — check your local laws for activities requiring a minimum age.

What's the difference between chronological age and biological age?

Chronological age is how many years you've lived (what this calculator measures). Biological age reflects how old your body actually functions based on health markers, lifestyle, and genetics. You can be chronologically 50 but biologically 40 with a healthy lifestyle.

Age Calculator — How Old Am I? Exact Age in Years, Months & Days

The Age Calculator tells you exactly how old you are — down to the day. Enter your date of birth and see your precise age in years, months, and days, along with fun facts like how many days you've been alive, your next birthday countdown, and more. Whether you need your exact age for a form, want to find out your age in days, or are just curious, this free calculator has you covered.

Birth Year

Birth Month

Birth Day

Frequently Asked Questions

Subtract your birth date from today's date. Count the number of complete years first, then remaining months, then remaining days. Our calculator handles this automatically, accounting for leap years.

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