Baby Gender Predictor
A playful prediction from the traditional Chinese birth chart. For fun only.
PregnancyScience-backed formula
Enter your details
Fill in the fields, then calculate
Just for fun: This is folklore with no scientific basis. Only an ultrasound or genetic test can determine a baby's sex.
Enter lunar age 18-45.
Awaiting Data
Enter your details and tap Calculate to see your results appear here.
0
ResultYour result appears here.
What it measures
The Chinese birth chart is a centuries-old tradition that guesses a baby's sex from the mother's lunar age and the month of conception. It has no scientific basis and is purely for fun.
Key dates line up into an easy week by week timeline.
For an accurate result, an ultrasound or genetic test is the only reliable way.
How to use this calculator
- Enter the mother's lunar age. Use our Lunar Age tool if unsure.
- Pick the month of conception.
- Tap Calculate for the chart's guess.
The formula used
The chart maps lunar age (18-45) and conception month to a predicted sex.
- lunar age
- Mother's traditional age.
- month
- Month of conception.
Understanding Your Results
Boy
Chart says boy
A 50/50 guess, for fun.
Girl
Chart says girl
A 50/50 guess, for fun.
Reliable methods
Ultrasound, NIPT
The only accurate tests.
Tips to Improve
- Treat this as entertainment only.
- Use lunar age, not Western age.
- Confirm with medical testing.
- Enjoy the tradition for fun.
Frequently Asked Questions
No. It is folklore with no scientific basis, accurate only by chance.
The mother's lunar age. Our Lunar Age tool can find it.
An ultrasound or a non-invasive prenatal test (NIPT).
Scientific References
- Villamor, E., et al. (2010). Chinese lunar calendar and sex prediction. BMJ, 341, c6985.
- This tool is for entertainment and has no scientific validity.