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Chinese Gender Predictor: Boy or Girl? Find Out Instantly

The most popular free Chinese gender predictor online. Use the traditional Chinese lunar calendar chart to predict your baby's gender — boy or girl? Enter mother's age and conception month for an instant prediction. Our baby gender calculator converts your age to lunar age automatically.

Enter Your Information

Used to calculate lunar age

When conception occurred (or estimated)

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Entertainment Only

This is for fun! Only medical methods like ultrasound can accurately determine gender.

🔮

Enter your information to get a gender prediction

How the Chinese Gender Chart Works

The Method

  • 1.
    Calculate the mother's lunar age at conception (age + 1 year)
  • 2.
    Determine the lunar month of conception
  • 3.
    Cross-reference on the traditional chart
  • 4.
    Chart predicts boy or girl based on these factors

The Reality

  • •
    No scientific evidence supports this method
  • •
    Studies consistently show 50% accuracy rate
  • •
    Same odds as randomly guessing
  • •
    Fun tradition with no predictive value

Accurate Ways to Determine Baby's Gender

Ultrasound

95%+ accuracy after 15-20 weeks of pregnancy. Non-invasive and routinely performed.

Available: 15-20 weeks

NIPT Blood Test

99%+ accuracy as early as 9-10 weeks. Analyzes fetal DNA in mother's blood.

Available: 9-10 weeks

CVS/Amniocentesis

99.9% accuracy. Usually done for genetic testing, not just gender determination.

Available: 10-15 weeks / 15-20 weeks
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Important Disclaimer

The Chinese Gender Predictor is a cultural tradition and should be treated as entertainment only. It has no scientific basis and multiple peer-reviewed studies have shown it performs no better than random chance (50% accuracy). Do not make any important decisions based on this prediction. For accurate gender determination, consult with your healthcare provider about medical options like ultrasound or genetic testing. Remember that the health of your baby is much more important than their gender.

How to Use This Predictor

Using the Chinese Gender Predictor is quick and simple. Keep in mind this tool is for entertainment purposes only.

  1. Enter the mother's birth date -- Select your date of birth. The tool uses this to calculate your lunar age at the time of conception, which is a key input for the traditional chart.
  2. Enter the conception date -- Select the date you conceived or an estimate. If you do not know your conception date, you can estimate it by subtracting 266 days from your due date.
  3. View the prediction -- The tool cross-references your lunar age and conception month on the traditional Chinese Gender Chart and displays a prediction of boy or girl.
  4. Review accuracy information -- Read the scientific context provided alongside the prediction to understand the limitations of this method.

Understanding the Chinese Gender Chart

History and Origins

The Chinese Gender Chart is said to be over 700 years old, with legends tracing it to the Qing Dynasty (1644-1912). One popular story claims the chart was discovered in a royal tomb near Beijing and was used by the imperial family to plan the gender of their heirs. Another version suggests it was kept in the Institute of Science in Beijing. While these origin stories add to the mystique, there is no verified historical documentation confirming any of them. What is clear is that the chart has been passed down through generations and remains one of the most widely referenced folk methods for gender prediction across East Asia and beyond.

How It Works: Lunar Age and Conception Month

The chart uses two inputs: the mother's lunar age at the time of conception and the lunar month in which conception occurred. Lunar age differs from Western age because it adds one year at birth -- a newborn is considered to be one year old on their birthday in the Chinese system. The lunar month corresponds to the traditional Chinese lunisolar calendar rather than the Gregorian calendar. By cross-referencing these two values on a grid, the chart assigns a prediction of either boy or girl for each combination. Our tool uses a simplified conversion from Gregorian dates, which may introduce small discrepancies compared to a full lunisolar calendar conversion.

Accuracy Claims vs. Scientific Evidence

Some proponents of the Chinese Gender Chart claim accuracy rates as high as 90 to 93 percent. However, multiple peer-reviewed studies have put these claims to the test and consistently found that the chart performs at roughly 50 percent accuracy -- the same odds as flipping a coin. A 2009 study published in the American Journal of Obstetrics and Gynecology analyzed over 2.8 million births and found no statistically significant correlation between the chart's predictions and actual gender outcomes. Sex determination is governed by chromosomes: an X chromosome from the father results in a girl, while a Y chromosome results in a boy. No calendar-based system influences this biological process.

Cultural Significance

Despite its lack of scientific validity, the Chinese Gender Chart holds cultural significance for many families. It is often used as a lighthearted activity during pregnancy, similar to old wives' tales about carrying high versus low or craving sweet versus salty foods. In Chinese culture, the chart is sometimes consulted alongside other traditional practices related to pregnancy and childbirth. It serves as a conversation starter at baby showers and gender-reveal celebrations around the world. The important thing is to treat the prediction as fun rather than fact, and to remember that the health of the baby matters far more than the gender.

Medically Accurate Gender Determination Methods

MethodAccuracyAvailable FromType
NIPT Blood Test99%+9 - 10 weeksNon-invasive blood draw
CVS99.9%10 - 13 weeksInvasive (tissue sample)
Amniocentesis99.9%15 - 20 weeksInvasive (fluid sample)
Ultrasound95%+15 - 20 weeksNon-invasive imaging
Chinese Gender Chart~50%Any timeFolk tradition (not medical)
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Important Disclaimer

The Chinese Gender Predictor is a cultural tradition provided here strictly for entertainment. It has no scientific basis and should not be used to make any decisions regarding your pregnancy. Peer-reviewed research has demonstrated that this chart is no more accurate than random chance. For reliable information about your baby's sex, consult your healthcare provider about medically validated methods such as ultrasound or non-invasive prenatal testing (NIPT). The health and well-being of your baby is always more important than their gender.

Chinese Gender Chart 2025–2026: Full Prediction Table

This is the traditional Chinese baby gender chart, showing predicted gender for each combination of mother's lunar age (18–45) and lunar conception month (January–December). Find your row (lunar age) and column (lunar conception month) to see the prediction. Remember: lunar age = your Gregorian age + 1.

Lunar AgeJanFebMarAprMayJunJulAugSepOctNovDec
18♀♂♀♂♂♂♂♂♂♂♂♂
19♂♀♂♀♂♀♂♀♀♂♀♀
20♂♂♀♂♀♀♀♀♀♀♀♀
21♀♀♀♀♂♀♀♂♂♀♂♂
22♂♀♂♂♀♂♂♀♀♂♂♂
23♂♂♀♂♂♀♀♀♀♀♀♀
24♀♀♀♂♀♂♂♀♀♂♂♂
25♂♀♀♀♂♀♀♀♀♀♀♀
26♂♂♂♀♂♂♀♂♂♀♀♂
27♀♀♂♂♀♀♂♂♂♀♀♂
28♀♂♀♀♀♀♀♀♀♂♂♀
29♂♀♂♂♀♂♂♀♂♀♀♂
30♀♂♀♀♂♀♂♂♀♂♀♀
31♂♂♂♀♂♀♂♂♀♀♂♀
32♀♀♀♂♂♂♀♂♀♂♀♂
33♂♀♀♀♀♂♀♀♂♀♂♀
34♂♂♂♂♂♀♂♂♀♂♀♂
35♀♀♀♀♀♀♀♀♀♂♂♀
36♂♂♂♂♂♂♂♂♂♀♀♂
37♀♀♀♀♀♀♀♀♀♀♀♀
38♀♂♂♀♂♂♀♂♂♂♀♂
39♂♂♀♂♂♀♂♂♀♀♂♂
40♀♀♂♂♀♂♂♀♀♂♀♂
41♂♂♀♀♂♀♀♂♂♀♂♀
42♀♂♂♂♀♂♀♀♂♂♀♂
43♀♀♀♂♀♀♂♂♀♀♂♂
44♂♀♂♀♂♂♀♀♂♂♂♀
45♀♂♀♂♂♀♀♂♂♀♀♂
♂ = Boy predicted♀ = Girl predictedLunar Age = Gregorian Age + 1 · Chart is for entertainment only · ~50% accuracy per scientific studies

Using the Chinese Calendar to Try for a Boy or Girl

Many hopeful parents use the Chinese Gender Chart as a guide for “gender swaying” — timing conception around months that the chart predicts the desired gender. While there is no scientific evidence that this works, it is a popular cultural practice. Here is how to use the chart as a family planning tool (for fun), alongside the scientifically-supported methods:

♂ Trying for a Boy (Chinese Calendar Method)

  1. Calculate your lunar age for each month you plan to conceive
  2. Find the months in the chart that show “B” (Boy) for your lunar age
  3. Plan conception during those months
  4. Use ovulation tracking to time intercourse precisely within the month

Remember: this is cultural tradition, not medicine. Accuracy ≈ 50%.

♀ Trying for a Girl (Chinese Calendar Method)

  1. Calculate your lunar age for each month you plan to conceive
  2. Find the months in the chart that show “G” (Girl) for your lunar age
  3. Plan conception during those months
  4. Use ovulation tracking to time intercourse precisely within the month

Remember: this is cultural tradition, not medicine. Accuracy ≈ 50%.

Scientifically-Supported Gender Influencing Methods

The only proven method of sex selection is Preimplantation Genetic Testing (PGT) during IVF, which allows embryos to be screened and selected by sex before transfer. This is ~99.9% accurate but involves significant cost and medical intervention. The Shettles Method (timing intercourse relative to ovulation) is widely discussed but has not been reliably validated in clinical studies; sex determination ultimately depends on which sperm fertilizes the egg.

PGT + IVF

~99.9% accuracy · Medical procedure · Expensive ($15,000–$30,000)

Shettles Method

Unproven · Time intercourse to ovulation · No cost

Chinese Calendar

~50% accuracy (random) · Cultural tradition · Free

Chinese Gender Chart Explained

The Chinese gender chart (also known as the Chinese baby gender calendar) is a prediction method based on a 700-year-old chart allegedly discovered in a royal tomb near Beijing. The chart cross-references two variables: the mother's lunar age at the time of conception and the lunar month of conception. Our Chinese gender predictor automatically converts your Gregorian calendar dates to the Chinese lunar calendar for accurate results.

While the boy or girl predictor is a fun tradition embraced by millions of parents worldwide, it's important to note that scientific studies show the chart has approximately 50% accuracy — the same as random chance. A 2009 study published in the American Journal of Obstetrics & Gynecology tested the chart against 2.8 million birth records and found no significant predictive power.

For medically accurate gender determination, consult your healthcare provider about NIPT testing (available from week 10, 99%+ accuracy), CVS or amniocentesis, or a mid-pregnancy ultrasound (typically performed at 18-20 weeks). Our baby gender calculator is intended for entertainment purposes only.

Frequently Asked Questions

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