Baby Gender Predictor
Use the ancient Chinese Gender Calendar and fun old wives' tales to predict whether you're having a boy or a girl. Free, instant, no signup.
How the Chinese Gender Calendar Works
The Chinese Gender Calendar — also called the Chinese Birth Chart or Chinese Gender Predictor — is one of the oldest and most popular folk methods for predicting a baby's sex. Legend says the original chart was discovered in a royal tomb near Beijing over 700 years ago during the Qing Dynasty. Whether or not that origin story is true, the chart has been used by expectant parents across cultures for generations.
The prediction is based on two factors: the mother's lunar age at the time of conception and the lunar month in which conception occurred. Lunar age is different from Western age — in Chinese tradition, you are 1 year old at birth (counting time in the womb) and you gain a year at each Lunar New Year rather than on your birthday. This means your lunar age can be 1 or 2 years older than your Western age depending on when you were born.
Our calculator handles the lunar conversion automatically. Simply enter your birthday and your due date (or conception date), and we cross-reference the traditional chart to give you a prediction. We then add a fun twist with five old wives' tales questions to give you a combined result.
Chinese Gender Chart 2026
Below is the complete Chinese Gender Prediction Chart. Find the mother's lunar age on the left and the lunar month of conception across the top. The chart itself is the same every year — what changes is how Gregorian calendar dates map to lunar months, since the Lunar New Year falls on a different date each year (February 17 in 2026).
| Age | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 18 | G | B | G | B | B | B | B | B | B | B | B | B |
| 19 | B | G | B | G | G | B | B | B | B | G | B | G |
| 20 | G | B | G | B | B | B | B | B | G | B | B | B |
| 21 | B | G | G | G | G | G | G | G | G | G | G | G |
| 22 | G | B | B | G | B | G | G | G | G | G | G | G |
| 23 | B | B | G | B | B | G | B | G | G | B | B | G |
| 24 | B | G | B | B | G | B | B | G | G | G | G | B |
| 25 | G | B | B | G | G | B | G | B | B | B | B | B |
| 26 | B | G | B | G | G | B | G | B | G | G | G | G |
| 27 | G | B | G | B | G | G | B | B | B | B | G | B |
| 28 | B | G | B | G | G | G | B | B | B | B | G | G |
| 29 | G | B | G | G | B | B | B | B | B | G | G | G |
| 30 | B | G | G | G | G | G | G | G | G | G | B | B |
| 31 | B | G | B | G | G | G | G | G | G | G | G | B |
| 32 | B | G | G | G | B | G | G | B | G | G | G | B |
| 33 | G | B | G | B | G | G | G | B | G | G | G | G |
| 34 | B | G | G | G | G | G | B | G | G | G | B | B |
| 35 | B | B | G | B | G | G | G | B | G | G | B | B |
| 36 | G | B | B | G | B | G | G | G | B | B | B | B |
| 37 | B | G | B | B | G | B | G | G | B | G | B | G |
| 38 | G | B | G | B | B | G | B | G | B | G | G | B |
| 39 | B | G | B | B | B | G | G | B | G | G | G | G |
| 40 | G | B | G | B | G | B | B | G | B | G | B | G |
| 41 | B | G | B | G | B | G | G | G | B | G | G | G |
| 42 | G | B | G | B | G | B | B | B | G | B | G | B |
| 43 | B | G | B | G | B | G | B | B | G | B | B | B |
| 44 | B | B | G | B | B | B | G | B | G | B | G | G |
| 45 | G | B | B | G | G | G | B | G | B | B | G | G |
B = Boy, G = Girl. Ages shown are lunar ages (typically 1-2 years older than Western age). Months are lunar months.
Old Wives' Tales for Gender Prediction
Long before ultrasounds existed, families relied on observation and folklore to guess whether a baby would be a boy or a girl. These "old wives' tales" have been passed down for centuries and remain popular conversation starters during pregnancy. Here are the ones our quiz uses:
- Sweet vs. salty cravings: The tale says craving sweets like chocolate and fruit means a girl, while salty and savory cravings point to a boy.
- Energy levels: Feeling energetic and active? Folklore says boy. Feeling exhausted and wiped out? The tale says girl.
- Mood swings: Emotional rollercoasters are said to signal a girl (due to the extra estrogen theory), while staying calm and even-keeled supposedly means a boy.
- Sleep patterns: Sleeping a lot is linked to girl predictions, while restless, interrupted sleep is associated with boys.
- Mother's intuition: Many mothers report having a strong gut feeling about their baby's sex — and some studies suggest maternal intuition is right slightly more often than chance.
None of these have scientific backing as gender predictors. Cravings are influenced by hormonal changes and nutritional needs, fatigue varies by trimester and individual, and mood is affected by countless factors beyond the baby's sex.
How Accurate Is the Chinese Gender Predictor?
In short: about 50%, the same as a coin flip. Multiple studies have tested the Chinese Gender Calendar against actual birth records and found no statistically significant predictive power. A 1999 study published in the American Journal of Obstetrics and Gynecology analyzed 2.8 million births and concluded the chart was correct about 50% of the time.
That doesn't diminish its appeal — the Chinese Gender Calendar endures because it's fun, culturally meaningful, and gives expectant parents something to bond over while they wait for the real answer. Think of it as a pregnancy party trick, not a diagnostic tool.
When Can You Actually Find Out Your Baby's Gender?
If you want a medically reliable answer, here are your options:
- NIPT blood test (10+ weeks): The non-invasive prenatal test analyzes cell-free fetal DNA in the mother's blood. It is primarily used to screen for chromosomal conditions, but it also reveals the baby's sex with over 99% accuracy. Many providers offer it from 10 weeks onward.
- Anatomy scan ultrasound (18-22 weeks): This is the most common way parents learn the sex. The sonographer looks for physical markers during a detailed scan that also checks the baby's organs, growth, and development.
- CVS or amniocentesis (10-20 weeks): These diagnostic procedures analyze the baby's chromosomes directly. They are typically performed for medical reasons (like screening for genetic conditions) but also reveal sex as a byproduct.
- At-home gender test kits: Some commercial kits (like SneakPeek) claim to detect fetal DNA in a finger-prick blood sample as early as 6-8 weeks. Accuracy varies and is highly dependent on following the instructions precisely to avoid contamination.
Until you have confirmation from one of these methods, enjoy the anticipation — and have fun with our predictor in the meantime.
Frequently Asked Questions
How does the Chinese gender calendar work?
The Chinese Gender Calendar uses two inputs: the mother's lunar age at conception and the lunar month of conception. These values are cross-referenced on a chart that originated in the Qing Dynasty. Lunar age differs from Western age — in Chinese tradition, a baby is considered 1 year old at birth and gains a year at each Lunar New Year rather than on their birthday.
Is the Chinese gender predictor accurate?
No scientific study has confirmed the Chinese Gender Calendar's accuracy beyond 50/50 chance — the same as flipping a coin. A 1999 study in the American Journal of Obstetrics and Gynecology found no statistical significance. It is a fun cultural tradition, not a medical diagnostic tool.
What is the Chinese lunar age?
Chinese lunar age (also called nominal age) starts at 1 when a baby is born, reflecting the time spent in the womb. You then gain one year at each Lunar New Year, not on your birthday. So depending on when you were born relative to the Lunar New Year, your lunar age can be 1 or even 2 years older than your Western age.
Can old wives' tales predict baby gender?
Old wives' tales — like craving sweet foods means a girl, or carrying high means a boy — are folklore traditions with no scientific backing. Studies have consistently shown these signs do not correlate with the baby's sex. They are fun conversation starters during pregnancy, but an ultrasound or blood test (NIPT) is the only reliable way to determine gender before birth.
When can I find out my baby's gender?
You can find out your baby's sex as early as 10 weeks with a non-invasive prenatal test (NIPT), which analyzes fetal DNA in the mother's blood. An anatomy scan ultrasound, typically performed between 18 and 22 weeks, is the most common method. Some parents also learn the sex through CVS (10-13 weeks) or amniocentesis (15-20 weeks), though these are diagnostic tests usually done for other medical reasons.
Does the Chinese gender chart work for 2026?
The Chinese Gender Chart is the same every year — it does not change annually. What matters is the mother's lunar age and the lunar month of conception, both of which depend on the Lunar New Year date for that year. Our calculator automatically handles the 2026 Lunar New Year (February 17, 2026) so your results are correctly adjusted.