Age Calculator
Calculate your exact age in years, months and days.
When were you born?
Select your date of birth and your exact age appears instantly.
Your age result will appear here.
Age calculator
What is an Age Calculator?
An age calculator finds someone's exact age from their date of birth. ToolJi shows the result in years, months and days, plus useful birthday details like the next birthday and days remaining.
How it works
How to Calculate Your Age
Enter your date of birth.
The calculator automatically calculates your age.
View your exact age and next birthday.
FAQ
Age Calculator Questions
How old am I?
Enter your date of birth and the calculator instantly shows your age in years, months and days.
How is age calculated?
Age is calculated by comparing your date of birth with today's date or the selected as-of date, then adjusting for month lengths and birthdays.
Can I calculate my age on a specific date?
Yes. Open Advanced and choose a different Calculate As Of date.
Does the calculator handle leap years?
Yes. The calculator uses real calendar dates and handles leap years and different month lengths.
How many days until my next birthday?
After you enter your date of birth, the calculator shows your next birthday and the number of days remaining.