Mayan gender predictor
A simple age-plus-year folklore calculation, straight from your two dates.
Direct answer: add your age at conception to the calendar year you conceived. Even means girl, odd means boy in this tradition—purely for fun, not a prediction method.
The Mayan method adds your age at conception to the calendar year you conceived. An even total is read as a girl, odd as a boy—a simple folklore rule, not a scientific one.
Add both dates to run the calculation.
How the calculation works
Unlike the Chinese gender chart, which looks up a lunar age against a lunar month in a grid, the Mayan method is pure arithmetic: your age at conception plus the calendar year of conception, then check whether the total is even or odd.
Ultrasound-based folklore methods like Ramzi and skull theory at least start from a real medical image rather than a date-based formula, though clinical review has not validated those either—an anatomy scan or genetic test remains the reliable route.
Common questions
How does the Mayan gender predictor work?
Add your age at conception to the calendar year you conceived. An even sum is traditionally read as a girl, an odd sum as a boy. It's a simple arithmetic folklore rule, not a scientific formula.
Is the Mayan method accurate?
No. Because there are only two outcomes, an even/odd rule lands correct about half the time by chance alone—similar to a coin flip. No clinical evidence supports its accuracy.
What age should I use—now or at conception?
Use your age at the time you conceived, not your current age. This calculator works it out for you from your birth date and conception date.
Is this the same as the Chinese gender chart?
No. The Chinese gender chart uses a lunar-age-by-lunar-month lookup table, while the Mayan method uses a simple age-plus-year sum. Both are folklore traditions with similar, chance-level accuracy.
Keep guessing
Compare both calendar methods in the baby gender predictor, or try the Chinese gender predictor and old wives' tales quiz.