Chinese Gender Calendar Leap Month: How Lunar Leap Years Affect Predictions
Learn why the intercalary month matters for the chinese gender calendar leap month and how modern science views these traditional predictions.
Use the free Chinese Gender Predictor to estimate your baby's gender based on the traditional Qing Gong Biao lunar calendar chart.
Calculate using Chinese Lunar Calendar
Optimal Conception Period
Optimal Conception Period
This Chinese Gender Predictor is based on the traditional Chinese Gender Prediction Calendar (Qing Gong Biao) and is intended for entertainment and educational purposes only. It does not guarantee actual baby gender or replace medical advice. Please read our full medical disclaimer for more information.
Monthly gender predictions based on the traditional Qing Gong Biao lunar calendar algorithm
Enter the mother's date of birth and the estimated conception date for an instant prediction based on the traditional Qing Gong Biao chart.
Predicted Gender
Lunar Age
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Lunar Month
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Gregorian Conception Date
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Based on the mother's lunar age and the lunar month of conception, the traditional chart predicts a Boy.
This prediction is for entertainment purposes only. Based on the traditional Qing Gong Biao chart with no scientific validation. Always consult a healthcare provider for medical advice.
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Have questions? Read our Chinese Gender Predictor FAQ, learn how this Chinese Gender Chart tool works, or review our full medical disclaimer.
Quick answers about the Chinese Gender Predictor chart
The Chinese Gender Predictor is a traditional chart believed to have originated over 700 years ago in China. It uses the mother's lunar age and the lunar month of conception to estimate whether a baby will be a boy or a girl. The chart is based on ancient Chinese philosophy involving Yin and Yang and the five elements. Today, it is used as a fun cultural tradition rather than a medical tool.
The predictor uses two inputs: the mother's Chinese lunar age and the lunar month of conception. These values are cross-referenced on a grid to produce a prediction. The Chinese lunar age is typically one year higher than the Western age because it counts time in the womb. Our calculator converts your Gregorian dates to lunar dates automatically and maps them to the traditional chart.
Anecdotal reports suggest the chart is correct roughly 50% of the time, which is essentially the same probability as a random guess. There is no scientific evidence supporting its accuracy. Many families enjoy comparing results after birth, but the predictions should be treated as entertainment, not a reliable indicator of baby gender.
No, the Chinese Gender Predictor is not scientifically proven. Biological sex is determined by chromosomes at conception, and no calendar-based method can influence or predict this. Scientific studies have shown that external factors like the mother's age or lunar month do not affect which sperm fertilizes the egg.
The Chinese Gender Predictor is designed for single pregnancies and does not account for multiple births. Twins result from separate fertilization events, which the chart cannot predict. If you are expecting twins or multiples, rely on medical imaging and your healthcare provider for accurate information.
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