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1Introduction
The Age Calculator determines age from a birth date. Enter the Gregorian year, month, and day of birth and get both Western age and nominal age at once. Western age is calculated precisely from the Gregorian birthday, while nominal age follows the traditional lunar calendar method, letting you see the difference between the two at a glance. The tool shows the age breakdown by year, month, and day, convenient for resumes, school enrollment, physical exams, and other scenarios that need detailed age info. Every time the page opens, results automatically refresh based on the current date, so there is no lag. It also accurately handles users who need to check lunar birthdays or year-end birth dates. It suits parents tracking their children's growth progress, young people confirming their exact age, or quick verification before handling documents. No registration needed - open and use, saving the hassle of manual calculation and calendar flipping.
2How to Use
Enter your birth date
Accurately select or enter your Gregorian birth date in the date picker as the calculation basis.
Click the calculate button
Click the "Calculate Age" button and the system instantly calculates both Western and nominal age based on today’s date.
View the age details
See the Western age, nominal age, and the breakdown in years, months, and days. Useful for resumes or school enrollment.
3FAQ
How does the age calculator calculate full years?
Subtract the birth date from the current date according to the Gregorian calendar; one full year equals one year of age.
What is the difference between nominal age and full years?
Nominal age is calculated by the lunar calendar, with one year at birth and an additional year after each Spring Festival; full years are calculated by the Gregorian calendar, adding one year after each birthday.
