Important: This Mayan calendar gender calculator is for entertainment purposes only and is not a medical test. For reliable gender determination, please speak to your healthcare professional about ultrasound, NIPT or other clinical tests.
Curious whether the Mayan calendar gender prediction worked for your previous pregnancies? Add your details below to see how accurate the method was for you.
| Age at Conception | Month | Actual Gender | Prediction | Match? |
|---|
What Is the Mayan Calendar Gender Predictor?
The Mayan calendar gender predictor is a popular old wives' tale baby gender prediction method that many expectant parents use for fun. This entertainment-only gender prediction tool uses two simple pieces of information: the mother's age at conception and the month of conception.
Despite its name, there is no historical evidence that the ancient Mayans actually used this method to predict baby gender. The Mayan baby gender calculator is a modern internet phenomenon based on simple mathematics rather than any ancient or medically-proven technique. It has become a beloved fun baby gender calculator that parents-to-be enjoy using alongside other folklore methods.
How Our Mayan Calendar Gender Calculator Works
Our Mayan gender predictor uses a straightforward method to predict whether you might be having a boy or a girl. Here is how it works:
- Step 1: Enter your age at conception using either the quick method (select your age directly) or the date method (enter your date of birth and conception date).
- Step 2: The calculator determines whether your age and conception month are even or odd numbers.
- Step 3: Based on the Mayan calendar gender prediction method, if both numbers are even or both are odd, the prediction is a girl. If one is even and the other is odd, the prediction is a boy.
This is mathematically equivalent to checking whether the sum of your age and conception month is even (girl) or odd (boy). Both expressions of the rule give the same result.
Is the Mayan Calendar Gender Prediction Accurate?
Many websites and parents see the Mayan calendar gender test as a fun tradition during pregnancy. However, it is important to understand that:
- Scientifically, this method is approximately 50% accurate – the same odds as flipping a coin or making a random guess.
- There is no known biological mechanism that links the mother's age or the month of conception to the baby's sex.
- The Mayan calendar gender myth has no basis in medical science or verified historical records.
For reliable gender determination, parents should rely on clinical methods such as ultrasound scans (typically from 18-21 weeks), NIPT (non-invasive prenatal testing), or other professional medical tests. These methods offer far greater accuracy than any folklore prediction method.
Mayan Gender Chart – Quick Reference
The Mayan pregnancy gender chart follows a simple even/odd pattern. Here is a quick reference table:
| Mother's Age | Conception Month | Prediction |
|---|---|---|
| Even (e.g., 28, 30, 32) | Even (Feb, Apr, Jun, Aug, Oct, Dec) | Girl |
| Odd (e.g., 27, 29, 31) | Odd (Jan, Mar, May, Jul, Sep, Nov) | Girl |
| Even (e.g., 28, 30, 32) | Odd (Jan, Mar, May, Jul, Sep, Nov) | Boy |
| Odd (e.g., 27, 29, 31) | Even (Feb, Apr, Jun, Aug, Oct, Dec) | Boy |
Remember: this baby boy or girl calculator Mayan calendar method is purely for entertainment and should not be used for any medical decisions.
Mayan Calendar Gender Prediction vs Chinese Gender Chart
Both the Mayan calendar and the Chinese gender chart are popular old wives' tale baby gender prediction methods, but they work differently:
Mayan Calendar Method
- Uses mother's actual age at conception
- Uses the Gregorian calendar month of conception (1-12)
- Based on simple even/odd mathematics
- No historical evidence of ancient Mayan origin
Chinese Gender Chart
- Uses mother's lunar age (typically your age plus one or two years)
- Uses the lunar calendar month of conception
- Based on a chart with specific combinations
- Claims to originate from ancient China (though unverified)
The Chinese gender predictor vs Mayan calendar comparison often comes up, but it is important to remember that both are folklore tools with no scientific backing. Neither should be relied upon for accuracy – they are simply enjoyable ways to guess your baby's gender while waiting for proper medical confirmation.
Frequently Asked Questions
How accurate is the Mayan calendar gender predictor?
The Mayan calendar gender predictor has approximately 50% accuracy – the same as a random guess. There is no scientific evidence that this method can reliably predict a baby's gender. It is designed purely as a fun baby gender calculator for entertainment purposes.
How do I use this Mayan calendar gender calculator?
Simply choose either the Quick Method (enter your age and conception month directly) or the Date Method (enter your date of birth and conception date). Then click "Predict Baby's Gender" to see your result. The calculator will show whether the Mayan method predicts a boy or a girl based on the even/odd pattern.
Do I need my lunar age for this calculator?
No, this Mayan baby gender calculator uses your actual age in years, not your lunar age. Lunar age is used in the Chinese gender prediction chart, which is a different method. For our Mayan gender predictor, simply use your regular age at the time of conception.
Can I use this tool before I am pregnant?
Yes, you can use this Mayan pregnancy calendar tool before pregnancy to see what the prediction would be for different conception dates. Some couples use it for fun when planning, though remember it has no effect on actual outcomes and cannot help you "choose" your baby's gender.
Is this method based on real Mayan history?
Despite its name, there is no historical evidence that the ancient Mayan civilisation used this method to predict baby gender. The "Mayan calendar gender myth" appears to be a modern creation that spread via the internet. The Mayans had sophisticated calendar systems, but this particular gender prediction method has no verified connection to their culture.
What is the difference between the Mayan and Chinese gender charts?
The main differences are: the Mayan method uses your actual age and Gregorian calendar month with an even/odd calculation, whilst the Chinese chart uses lunar age and lunar month with a traditional chart lookup. Both are entertainment only gender prediction methods with no proven accuracy beyond chance.
When can I find out my baby's gender accurately?
For reliable gender determination, you can have an ultrasound scan typically between 18-21 weeks of pregnancy. NIPT (non-invasive prenatal testing) can determine gender as early as 10 weeks. Always consult your midwife or doctor for accurate medical information about your baby.
Is it safe to enter my details in this calculator?
Yes, this Mayan calendar gender calculator UK tool processes all information directly in your browser using JavaScript. No personal data is sent to any server, stored, or shared. Your privacy is fully protected – the calculation happens entirely on your device.