Date Utility
Age Calculator
Enter a birth date to calculate full age, year age, Korean age, days lived, and days left until the next birthday.
Age Calculation Settings
Enter a birth date and base date to view age results by different standards.
Full Age
-Year Age
-Korean Age
-Until Next Birthday
-Details
- Birth Date: -
- Base Date: -
- Days Lived: -
- Next Birthday: -
Recent Calculation History
Reload recently calculated birth date results.
Help
What is an Age Calculator?
An age calculator is a date utility that calculates full age, year age, and Korean counting age based on a birth date and a base date. It also shows how many days have passed since birth and how many days remain until the next birthday.
Supported Features
- Full age calculation
- Year age calculation
- Korean counting age calculation
- Days left until the next birthday
- Days lived calculation
- Recent calculation history
- Share link copy
- Focus mode
Use Cases
- Check your own or a family member’s full age.
- Confirm age by base date when filling out documents.
- Check how many days are left until a birthday.
- Calculate how many days have passed since birth.
How is full age calculated?
Full age is calculated by subtracting the birth year from the base year. If the birthday has not yet passed in the base year, one year is subtracted.
What are year age and Korean age?
Year age is calculated by subtracting the birth year from the base year. Korean counting age starts at one in the birth year and increases by one each new year.
Where is recent calculation history saved?
Recent calculation history is saved in your browser’s local storage. It is not sent to the server, so it can only be viewed on the same device and browser.