About ChineseGenderCalendar.org

ChineseGenderCalendar.org is a free, ad-supported resource dedicated to the traditional Chinese Gender Calendar. We built this site to help expecting parents explore one of the oldest folklore traditions surrounding pregnancy, presented in a clear, accurate, and culturally respectful way.

Who's Behind This Site

Hi, I'm Sarah Chen — a Chinese-American cultural researcher and writer based in the San Francisco Bay Area. I grew up listening to my grandmother explain the Chinese Gender Calendar every time a relative or neighbor announced a pregnancy. For her, checking the chart was as natural as planning a baby shower.

Years later, when friends started asking me to “look up the chart” for them, I realized how hard it was to find an English-language version that handled lunar age correctly and treated the tradition with respect instead of clickbait. Most online calculators either skip the lunar conversion entirely or present the chart as if it were a medical test. Neither felt right.

That frustration became ChineseGenderCalendar.org. Every article, calculator, and guide on this site reflects the same goal: honor the cultural tradition my grandmother passed down, get the technical details right, and be upfront about the fact that the chart is folklore — not science. I research and write every page myself, drawing on historical Chinese texts, Hong Kong Observatory lunar data, and peer-reviewed studies when the topic calls for it.

Our Mission

Our goal is simple: make the Chinese Gender Calendar easy to use, accurate in its historical form, and honest about what it can and cannot do. Many online calculators cut corners on lunar age conversion or present the chart as if it had medical value. We believe expecting parents deserve better.

Every page on this site is designed to balance two ideas: respect for the tradition, and clarity about the science. The Chinese Gender Calendar is a centuries-old cultural artifact worth preserving, but it is not a substitute for modern medical gender determination. We say both things clearly, every time.

What We Offer

Our Editorial Standards

Every article on this site is researched against multiple historical sources for folklore content, and against peer-reviewed studies for any claims about accuracy or biology. When we reference a study, we cite the publication. When a claim is traditional rather than scientific, we say so clearly.

We never present the Chinese Gender Calendar as a medical tool. Where a topic touches on medical decisions, we direct readers to consult licensed healthcare professionals. Our content is written for cultural interest, entertainment, and education — not as a substitute for a doctor's guidance.

Pages are reviewed periodically and updated when we find better sources, correct errors, or expand coverage of topics that readers ask about.

How the Site Is Funded

ChineseGenderCalendar.org is free to use and always will be. The site is supported entirely by display advertising. Small, non-intrusive ads help cover hosting, development, and the ongoing research that goes into every page.

Advertising never influences the editorial content on this site. We keep ads clearly separated from our articles and tools so they cannot be confused with editorial content.

A Note on Accuracy

The Chinese Gender Calendar has been studied multiple times in peer-reviewed research, and the consistent finding is that its predictive accuracy sits around 50% — the same as a coin flip. We present the chart as a cultural tradition and a fun activity, never as a reliable predictor. For confirmed gender information during pregnancy, please speak with your healthcare provider about NIPT, ultrasound, amniocentesis, or other medical options. You can read our full analysis on the accuracy page.

Privacy and Data

We take reader privacy seriously. The calculator on our site runs entirely in your browser, and we do not store the birth dates, conception dates, or predictions you enter. For details on the analytics and advertising data we do collect, please see our Privacy Policy.

Legal and Disclaimers

All content on this site is intended for entertainment and cultural interest only. For the full legal position, including our stance on medical advice, please read our disclaimer page.

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