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Chinese Gender Predictor
Enter the mother’s age and conception month for a fun boy-or-girl prediction.
Prediction
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Just for fun!
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| Method | — |
| Odds | — |
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Show our math
Enter your figures above to see the step-by-step working.
For entertainment onlyEverything computed client-side — nothing leaves this page
How the Chinese Gender Predictor Works
The Chinese gender predictor is a centuries-old bit of folklore that guesses a baby’s sex from the mother’s age and the month of conception. This version uses the well-known formula — 49 plus the conception month, minus the mother’s age, plus 19 — and calls it a boy if the result is odd, a girl if even.
It’s purely for fun. There’s no scientific basis, and the real odds are close to 50/50 — only an ultrasound or genetic test can actually tell. Enjoy it as a game, not a prediction.
number = 49 + conception month − age + 19 (odd = boy, even = girl)
Note: an estimate for general guidance, not medical advice. Your doctor or midwife knows your situation best.
Frequently Asked Questions
Is the Chinese gender predictor accurate?
No — it’s folklore with no scientific basis. The real chance is about 50/50. Only an ultrasound or genetic test can determine sex.
How does it work?
It combines the mother’s age and the conception month using a traditional formula and calls the result boy or girl. It’s a game, not science.
When can I actually find out the baby’s sex?
Usually via ultrasound around 18–20 weeks, or earlier with a blood test (NIPT) from about 10 weeks.
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