Age Calculator
Find out how old you are with this free age calculator. Enter your date of birth and instantly see your exact age in years, months, weeks, and days.
Enter your date of birth above
About this tool
This free age calculator precisely calculates how long you have been alive based on your date of birth. The result goes beyond a simple number of years: it is presented in full detail, with your age broken down into years, months, weeks, and days, as well as in total units, such as how many months or how many days you have lived.
Use Cases
- Know Your Exact AgeFind out precisely how old you are in years, months, weeks, and days.
- Calculate Anyone's AgeEnter any birth date to find out the exact age of a child, parent, patient, or client.
How It Works
Enter Birth Date
Select your date of birth using the date picker field.
Instant Calculation
Your age is calculated automatically as soon as you select a date.
See Results
View your age broken down into years, months, weeks, and days, plus alternative representations.
Common Examples
A quick reference for those wondering how old they are based on common birth years. The values below are updated automatically.
- If you were born in 1990, how old are you?You are currently 36 years old, or 37 if you have already had your birthday this year.
- If you were born in 2000, how old are you?You are currently 26 years old, or 27 if you have already had your birthday this year.
- If you were born in 2005, how old are you?You are currently 21 years old, or 22 if you have already had your birthday this year.
- If you were born in 2010, how old are you?You are currently 16 years old, or 17 if you have already had your birthday this year.
Questions and Answers
We calculate the exact difference between your birth date and today, decomposed into years, months, weeks, and days.
Yes. It uses precise date arithmetic that accounts for leap years and varying month lengths.
It shows alternative ways to express your age, for example your total age expressed entirely in months or entirely in weeks.
Simply enter your date of birth in the field above. The calculator instantly compares it with today's date and shows the result in years, months, weeks, and days.
Yes. It works for any birth date in the past, from young children to centenarians. The only restriction is that the date entered must be earlier than today.
This calculator uses today's date as a reference. To compare two arbitrary dates, use our date difference tool, which returns the interval between any two dates.
Breaking the age down into years, months, weeks, and days provides a more complete view than the year number alone. It is useful for monitoring babies, anniversaries, and personal milestones.