How to Use Qi Men Dun Jia Calculator
The Qi Men Dun Jia Calculator generates a complete Qimen Dunjia chart with a few simple inputs. No prior knowledge of Chinese metaphysics is required to operate the tool — the Qi Men Dun Jia Calculator handles all palace assignments automatically.
- Select a Date — Choose the year, month, and day for the chart. The Qi Men Dun Jia Calculator uses this to determine the solar term, Dun polarity, and Ju number.
- Enter a Time — The hour determines the Time Palace (时宫), which pinpoints which palace the day’s energy is centered on.
- Choose Label Language — Toggle between English and Chinese labels for the grid. All field names (Heaven Plate, Earth Plate, Stars, Doors, Deities) are available in both languages.
- Read the Chart — The Nine Palace Grid displays each palace with its Heaven Plate stem, Earth Plate stem, Nine Star, Eight Door, and Eight Deity. Summary cards above the grid show the Dun type, Ju number, and Hour Palace.
The Qi Men Dun Jia Calculator also includes a Field Glossary explaining each element’s meaning for readers new to Chinese metaphysics.
Formula & Theory - Qi Men Dun Jia Calculator
The Qi Men Dun Jia Calculator implements the classical Zhuan Pan (转盘 Rotating Plate) Qimen Dunjia method. The core derivation follows these steps:
1. Identify the Solar Term (节气) from the input date.
2. Determine Dun polarity:
Yang Dun (阳遁) — odd solar term index
Yin Dun (阴遁) — even solar term index
3. Compute the Ju Number (局数) = (solarTermIndex mod 9) + 1
4. Place the Earth Plate stems starting from the Ju Palace,
rotating forward (Yang Dun) or backward (Yin Dun)
through the Eight Outer Palaces in Luoshu order.
5. Apply the Heaven Plate by shifting stems from the Earth Plate.
6. Assign Nine Stars, Eight Doors, and Eight Deities
starting from the Ju Palace in the same rotation direction.| Term | Meaning |
|---|---|
| 九宫 Nine Palaces | The 3×3 Luoshu grid, numbered 1–9 with palace 5 at center |
| 三奇六仪 | Three Odd (乙丙丁) + Six Standard (戊己庚辛壬癸) — the 9 stems in QMDJ |
| 九星 Nine Stars | Celestial energy indicators: Tian Peng, Tian Rui, Tian Chong, etc. |
| 八门 Eight Doors | Directional gates: Open, Rest, Life, Harm, View, Death, Surprise, Block |
| 八神 Eight Deities | Spirit forces: Zhi Fu, Teng She, Tai Yin, Liu He, Bai Hu, Xuan Wu, Jiu Di, Jiu Tian |
| 天盘 Heaven Plate | The upper, dynamic stem layer placed on top of the Earth Plate |
| 地盘 Earth Plate | The fixed base stem layer determined by the Ju Number rotation |
Assumptions and Limits
The Qi Men Dun Jia Calculator uses approximate solar term boundary dates. For dates near a solar term transition, results may differ from charts using precise astronomical calculations or true solar time (真太阳时). The tool does not perform true solar time correction by default; users can note this in the display. For serious study or ceremonial use, consult a qualified practitioner.
Use Cases for Qi Men Dun Jia Calculator
The Qi Men Dun Jia Calculator is used by enthusiasts of Chinese metaphysics and cultural scholars for a variety of purposes:
- Cultural Learning — Explore the structure of Qimen Dunjia chart (Qimen Dunjia Chart) and learn how the Nine Palaces, Nine Stars, Eight Doors, and Eight Deities interact.
- Historical Research — Understand how traditional Chinese strategists and scholars used Qimen Dunjia for timing analysis in historical contexts.
- Language Study — The bilingual label toggle makes the Qi Men Dun Jia Calculator useful for students learning classical Chinese cosmological terminology.
- Hobbyist Divination — Those interested in Chinese Metaphysics Calculator traditions can experiment with different dates and times to see how the chart changes across solar terms.
- Educational Demonstrations — Teachers and content creators can use the Qi Men Dun Jia Calculator to visualize and explain the Luoshu nine-square grid and its classical associations.
Whether you are a student of Chinese culture, a metaphysics enthusiast, or simply curious about this ancient system, the Qi Men Dun Jia Calculator offers a convenient, browser-based way to explore Qimen Dunjia Chart layouts for any date and time.