What Is an Age Calculator?
An age calculator works out your exact age — in years, months, and days — based on your date of birth and any reference date you choose (defaulting to today).
How Does This Calculator Work?
Enter Your Birth Date
Pick your date of birth from the date field.
Set a Reference Date
Optionally choose a date to calculate your age as of.
Get Your Age
Instantly see your age in years, months, and days.
Frequently Asked Questions
The calculator finds the difference between your date of birth and the reference date, broken down into full years, remaining months, and remaining days.
Yes. Set the "Calculate Age As Of" field to any date — past or future — to see what your age would be on that date.
Yes. The calculator can be used online without creating an account.