Our Chinese Gender Predictor (also known as the Chinese Gender Calendar) offers a fun, instant way to guess your baby’s sex. Based on a 700-year-old legend, this calculator converts your dates to the Chinese Lunar Calendar to predict if you are likely having a boy or a girl.
Chinese Gender Predictor
Based on the ancient 700-year-old royal chart
Result
How to Use This Calculator
Using the Chinese Gender Predictor is simple, but it requires a specific calculation that many people get wrong. The chart relies on the Chinese Lunar Calendar, not the standard Gregorian calendar we use every day.
- Enter Your Date of Birth: We use this to calculate your "Lunar Age." In Chinese tradition, you are considered 1 year old the moment you are born.
- Enter Date of Conception: If you aren't sure of the exact date, use your estimated date of ovulation or count back 14 days from your missed period.
- Get Your Prediction: Our calculator automatically handles the complex lunar conversions to give you an instant "Boy" or "Girl" result.
How Does the Chinese Gender Chart Work?
The prediction is based on a chart reportedly discovered in a royal tomb near Beijing over 700 years ago. The original copy is said to be kept at the Institute of Science in Beijing.
The chart relies on two specific variables:
- Mother's Lunar Age: Your age according to the Chinese lunar cycles.
- Lunar Month of Conception: The month you conceived, converted to the lunar calendar.
By cross-referencing these two numbers on the grid, the chart reveals a gender prediction. For example, the chart suggests that a 25-year-old woman (lunar age) who conceives in a "male" lunar month has a higher probability of having a boy.
Is the Chinese Gender Predictor Accurate?
This is the most common question we get! From a scientific perspective, there is no biological evidence that lunar cycles influence the sex of a baby. Medical experts equate the accuracy to flipping a coin—about 50/50.
However, anecdotal evidence from parents often claims an accuracy rate much higher, sometimes cited as up to 90% in popular culture. We recommend treating this tool as a fun "old wives' tale" for entertainment purposes while you wait for your NIPT test or anatomy scan.
Frequently Asked Questions
Can this calculator predict twins?
The traditional chart is designed to predict the gender of a single baby. It does not account for fraternal twins (who can be different genders) or identical twins.
Why is my Lunar Age different from my real age?
The Chinese Lunar Calendar calculates age differently. You are 1 year old at birth, and your age increases on the Chinese New Year, not your birthday. This is why your Lunar Age is usually 1-2 years older than your actual age.
Can I use this to plan for a boy or girl?
Some parents use the Gender Prediction Chart backward—looking for months that predict a specific gender before trying to conceive. While there is no guarantee, it is a popular method for gender swaying!