Chinese Gender Calendar 2025 & 2026 Predictor

The Chinese Gender Calendar is a traditional chart used to predict a baby’s gender based on the mother’s lunar age at conception and the Chinese lunar month of conception. While this method has no scientific basis, many parents enjoy using it for fun and curiosity.

Simply enter the mother’s date of birth and the estimated date of conception (or due date) below. Our tool automatically converts Gregorian dates to the Chinese lunar calendar and calculates your lunar age, so you don’t need any additional converters.

How to Use the Chinese Gender Calendar

  1. Enter the mother’s date of birth – this is used to calculate her Chinese lunar age.
  2. Enter the conception date or due date – if you’re not sure, you can use the first day of your last period + 14 days as an estimate.
  3. Click “Predict Gender” – our tool converts both dates to the Chinese lunar calendar and shows the prediction.
  4. Check the chart – the intersection of the mother’s lunar age and conception lunar month on the Chinese gender chart gives the predicted gender (Boy or Girl).

Tip: In the Chinese lunar calendar, a baby is considered 1 year old at birth, so your lunar age is usually your Gregorian age + 1. We handle this calculation for you automatically.

Gender Predictor Tool

Converted to Chinese Lunar Age automatically.
Approx. 2 weeks after LMP (Last Menstrual Period).

What Is the Chinese Gender Calendar?

The Chinese Gender Calendar (also called the Chinese gender predictor or Chinese birth chart) is an ancient method that claims to predict whether a baby will be a boy or a girl. According to legend, it was discovered in a royal tomb near Beijing and used secretly in the imperial court during the Qing Dynasty.

The chart is based on two key pieces of information:

By crossing the lunar age and lunar month on the chart, you get a predicted baby gender: B (Boy) or G (Girl). Remember, this is a traditional folklore method and should only be used for entertainment purposes.

How the Chinese Lunar Calendar Affects the Prediction

The Chinese Gender Calendar is based on the Chinese lunar calendar, which differs from the Gregorian (Western) calendar used in most countries today. Because of this, simply using your regular age and the month of conception may give incorrect results.

Key differences:

That’s why most instructions tell you to convert both your birth date and the conception date into the Chinese lunar system before using the chart. Our tool does this automatically, using detailed lunar calendar data from 1900–2100, so you can trust the results to follow traditional rules.

Is the Chinese Gender Calendar Accurate?

There is no scientific evidence that the Chinese Gender Calendar can accurately predict a baby’s sex. Studies that have tested the chart against real birth data generally find that it’s about as accurate as flipping a coin — roughly 50%. For example, a large study at the University of Michigan analyzing over 2.8 million records showed no meaningful predictive power beyond chance.

Think of the Chinese gender predictor as a fun tradition, a conversation starter, or a way to build excitement during pregnancy — not as a medical test.

Chinese Gender Chart (Age vs. Month)

The original Chinese gender chart uses the mother’s lunar age (18–45) on the left and the lunar month of conception (1–12) across the top. Find the intersection to see the predicted baby gender:

B = Boy | G = Girl

Chinese Gender Calendar 2025 & 2026

The same Chinese gender chart can be used for any year, including 2025 and 2026. What changes each year is the mapping between Gregorian dates and Chinese lunar months. Because lunar new year falls on a different Gregorian date each year, the same month in January or February can belong to different lunar months.

Our tool handles the lunar conversion for the current and coming years automatically. Whether you’re planning pregnancy in 2025 or already expecting in 2026, just enter your dates and the Chinese Gender Predictor will do the rest.

Frequently Asked Questions

How accurate is the Chinese Gender Calendar? ▼
The Chinese Gender Calendar is not scientifically proven. Large real-world studies suggest it is only about 50% accurate — similar to guessing. Use it for fun only, not as a medical test.
How do I calculate my Chinese lunar age? ▼
In the Chinese system, you are considered 1 year old at birth. Your lunar age is usually your Gregorian age + 1. However, the exact calculation depends on whether Chinese New Year has passed in the conception year. Our tool does this conversion automatically for you.
Can I use the Chinese Gender Calendar for twins? ▼
The chart was designed for single pregnancies. For twins, you can still use it as a fun activity, but it doesn’t give separate predictions for each baby.
What if I don’t know my exact conception date? ▼
You can estimate your conception date by counting 14 days from the first day of your last menstrual period (LMP). Alternatively, you can use your due date and subtract about 38 weeks. The Chinese Gender Predictor will still work with these estimated dates.
Why are there different versions of the Chinese gender chart online? ▼
Over time, the chart has been copied, translated, and rearranged by different websites, so you may see small differences. All versions share the same basic structure: rows for lunar age and columns for lunar months. Our version matches the most commonly used layout.
Can I use the Chinese Gender Calendar for gender swaying? ▼
Some people try to time conception to “sway” toward a boy or a girl using the chart. There is no scientific proof that this works. If you’re trying to conceive, it’s more important to focus on overall health and medical advice than on folklore methods.
Should I use lunar or Gregorian dates with the Chinese gender predictor? ▼
The chart is based on lunar age and lunar month. If you use Gregorian dates directly without converting, the result is usually incorrect. Our tool automatically converts to lunar for you.
When is Chinese New Year in 2025 and 2026? ▼
Chinese New Year falls on a different date each year. For example, in 2025 it is on January 29, and in 2026 it falls on February 17 (dates are approximate and may vary slightly by region). The lunar month changes after Chinese New Year, which is why accurate conversion matters.
Can I use the Chinese gender predictor after IVF or fertility treatment? ▼
Yes, you can still use it for fun. Enter the conception date used in your IVF cycle or procedure. Remember that it is not a medical tool and does not guarantee or replace any medical diagnosis.
How can I find out my baby’s gender for sure? ▼
The most reliable ways to determine fetal sex are medical tests, such as NIPT (from about 9–10 weeks), ultrasound (usually after 18–20 weeks), or diagnostic tests like CVS or amniocentesis. Always ask your healthcare provider which option is best for you.