BaZi Basics
BaZi Compatibility Basics
How BaZi compatibility is read: Day Master relations, day-branch interactions, mutual useful elements and timing — and why compatibility is not a pass/fail score.
BaZi Calculator · 2026/10/13
How the Ten Gods are derived from the Day Master, what each family means, how to read them by strength and position, and a full lookup table for all ten Day Masters.
By BaZi Calculator · Updated 2026/10/03
The Ten Gods (十神) are the vocabulary of BaZi interpretation. They name the relationship between the Day Master and every other stem in the chart — visible stems, hidden stems, and the stems of luck and annual pillars. Once you can read the Ten Gods, a chart stops being a grid of characters and becomes a description of resources, outputs, pressures and support.
Each Ten God is defined by two questions: which element relation does the stem have with the Day Master, and is its polarity the same or different?
| Relation to the Day Master | Same polarity | Opposite polarity |
|---|---|---|
| Same element (companions) | Friend 比肩 | Rob Wealth 劫财 |
| Day Master generates it (output) | Eating God 食神 | Hurting Officer 伤官 |
| Day Master controls it (wealth) | Indirect Wealth 偏财 | Direct Wealth 正财 |
| It controls the Day Master (officer) | Seven Killings 七杀 | Direct Officer 正官 |
| It generates the Day Master (resource) | Indirect Resource 偏印 | Direct Resource 正印 |
The "direct" (正) members have opposite polarity and are traditionally considered more balanced; the "indirect" (偏) members share polarity and are considered more one-sided. Seven Killings, for example, is a same-polarity control and is traditionally described as more forceful than the Direct Officer.
Here is every combination: find your Day Master in the left column and read across to see what each stem means for you.
| Day Master \ stem | 甲 | 乙 | 丙 | 丁 | 戊 | 己 | 庚 | 辛 | 壬 | 癸 |
|---|---|---|---|---|---|---|---|---|---|---|
| 甲 | Friend | Rob Wealth | Eating God | Hurting Officer | Indirect Wealth | Direct Wealth | Seven Killings | Direct Officer | Indirect Resource | Direct Resource |
| 乙 | Rob Wealth | Friend | Hurting Officer | Eating God | Direct Wealth | Indirect Wealth | Direct Officer | Seven Killings | Direct Resource | Indirect Resource |
| 丙 | Indirect Resource | Direct Resource | Friend | Rob Wealth | Eating God | Hurting Officer | Indirect Wealth | Direct Wealth | Seven Killings | Direct Officer |
| 丁 | Direct Resource | Indirect Resource | Rob Wealth | Friend | Hurting Officer | Eating God | Direct Wealth | Indirect Wealth | Direct Officer | Seven Killings |
| 戊 | Seven Killings | Direct Officer | Indirect Resource | Direct Resource | Friend | Rob Wealth | Eating God | Hurting Officer | Indirect Wealth | Direct Wealth |
| 己 | Direct Officer | Seven Killings | Direct Resource | Indirect Resource | Rob Wealth | Friend | Hurting Officer | Eating God | Direct Wealth | Indirect Wealth |
| 庚 | Indirect Wealth | Direct Wealth | Seven Killings | Direct Officer | Indirect Resource | Direct Resource | Friend | Rob Wealth | Eating God | Hurting Officer |
| 辛 | Direct Wealth | Indirect Wealth | Direct Officer | Seven Killings | Direct Resource | Indirect Resource | Rob Wealth | Friend | Hurting Officer | Eating God |
| 壬 | Eating God | Hurting Officer | Indirect Wealth | Direct Wealth | Seven Killings | Direct Officer | Indirect Resource | Direct Resource | Friend | Rob Wealth |
| 癸 | Hurting Officer | Eating God | Direct Wealth | Indirect Wealth | Direct Officer | Seven Killings | Direct Resource | Indirect Resource | Rob Wealth | Friend |
Notice the pattern: each row is the same sequence shifted. That is because the Ten Gods depend only on element and polarity relations, which repeat around the cycle.
It is often easier to think in five families than in ten individual gods:
The classical gendered associations reflect the society in which the texts were written. Many modern practitioners read the families more broadly — wealth as what you manage, officer as what manages you — and this site follows that broader reading.
The meaning of a Ten God changes with the strength of the Day Master. This is the most important rule in Ten God interpretation:
So the same Hurting Officer can be read as creative talent in one chart and as friction with authority in another. Lists that assign fixed meanings — "Seven Killings = danger" — ignore this rule. See how to judge strength.
Position matters as much as identity:
A Direct Wealth in the day branch is read differently from a Direct Wealth in the year stem, even though the label is the same.
Visible stems express their Ten God openly. Hidden stems are latent: they become prominent when the same stem appears above (revealed, 透干), or when a luck or annual pillar clashes or combines the branch. The calculator lists hidden-stem Ten Gods separately so you can see both layers.
Ten Gods act on each other in pairs, and classical structures are built from these pairings:
Recognising these pairs is the step from labelling a chart to reading it. See reading the Ten Gods in context.
Luck pillars and annual pillars bring new stems, and each one is a Ten God relative to your Day Master. A decade of Direct Resource stems brings the themes of support and learning; a year of Seven Killings brings pressure and challenge — and whether those are welcome depends, again, on strength. The calculator labels every luck and annual pillar with its Ten Gods.
Suppose a 庚 metal Day Master is born in a 午 month. The month branch holds 丁 (Direct Officer) as main qi and 己 (Direct Resource) as middle qi. If 丁 is also revealed as a visible stem, the chart's structure is commonly described as a Direct Officer structure. The next question is whether the Day Master can carry it: in a fire month metal is out of season, so the reader looks for earth (Resource) to support metal and to absorb the fire. If 己 or 戊 appears with roots, the Officer and Resource cooperate — the classic "Officer produces Resource, Resource supports self" chain. If there is no earth and much fire, the Officer becomes pressure rather than structure.
This one paragraph uses four ideas from this article: the lookup table, hidden stems, strength, and interaction. That is the normal shape of a Ten Gods reading — never one star on its own.
Traditional texts tie the Ten Gods to family roles and to official careers that no longer exist in the same form. Modern readers usually translate them into themes: Officer as structure and accountability, Wealth as resources and practical management, Output as expression and skill, Resource as learning and support, Companions as peers and self-reliance. These translations are interpretive conventions, not literal predictions, and it is worth stating them as such when you explain a chart to someone else.
Open the Ten Gods calculator, enter a birth time and write down the Ten God of every visible stem and every main-qi hidden stem. Then group them into the five families and note which family is strongest, which is missing, and where each sits by pillar position. Ten minutes of this exercise teaches more than reading definitions.
Which Ten God is "best"? None. Each has constructive and excessive expressions.
What if a family is missing? A missing family is not automatically a problem; it may appear in hidden stems or in luck pillars, or simply not be central to the chart.
Do I count hidden stems equally? No. Main qi counts more than residual qi, and visible stems act more directly.
Next: five elements in BaZi, or open the Ten Gods guides.
BaZi Basics
How BaZi compatibility is read: Day Master relations, day-branch interactions, mutual useful elements and timing — and why compatibility is not a pass/fail score.
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