Chinese Age Calculator
Enter a birth date and an as-of date to calculate traditional Chinese nominal age (xūsuì) from the two Chinese lunar years—not from a fixed +1 shortcut.
Use the Chinese Age Calculator
Date of Birth
How it works: Traditional Chinese age (虚岁, xūsuì) counts the birth year as "year one." So a child born today is already age 1, and turns 2 on the next Lunar New Year. Formula: as-of lunar year − birth lunar year + 1. It is not always Western age + 1.
Your Age Results
Enter your birth date and click Calculate Age
Western Age
(Gregorian calendar)
—
years old
Chinese Nominal Age
虚岁 (xūsuì)
—
years old
Born
—
Days Lived
—
Lunar Birth Year
—
Zodiac
—
Next Birthday
—
Date Boundary Check
Seven dates around the selected as-of date show exactly when either age changes.
| Date | Western Age | Chinese Nominal Age | Difference |
|---|
Summary
Traditional Chinese nominal age (xūsuì, 虚岁) starts at 1 and advances when the Chinese calendar year changes at Lunar New Year. This calculator uses the related Chinese calendar year for both dates, so January and February boundaries are handled without assuming Western age + 1. It is a cultural date reference, not a legal-age determination.
How it works
- Enter a Gregorian birth date and the date on which you want the age calculated.
- The calculator converts each date to its related Chinese calendar year.
- It applies xūsuì = as-of lunar year − birth lunar year + 1.
- The result also shows completed Western age, lunar birth year and zodiac animal.
- The boundary table shows how the result changes around the selected date.
Use cases
- Understand your age in Chinese cultural and traditional contexts.
- Check nominal age references in family or cultural contexts.
- Prepare for Chinese New Year greetings where nominal age is customary.
- Research East Asian age traditions for academic or genealogy work.
- Explain the age system to friends or family with Chinese heritage.
- Verify age references in older Chinese historical or literary texts.