In-Law Compatibility
Mother-in-law, father-in-law, a partner's siblings: compare your chart with theirs to see where the house rules clash and how to keep a kind distance.
Updated October 25, 2026
Relationship
ezfate is a tool for self-reflection and entertainment. Readings are not medical, legal, financial or psychological advice.
Example pair
In-lawsA strong natural pull and plenty of support between the two charts.
Compatibility score: 86 out of 100. Excellent match.
In-laws
Your charts, read as in-laws
For in-laws, ezfate weighs Day Masters and Element exchange most. This is what those parts of your two charts say.
Day Masters
25% of the score (In-laws)
88Day Masters show how your temperaments meet; combining or feeding pairs make family life easier.
Element exchange
25% of the score (In-laws)
81The element exchange shows whether time together leaves you supported or tired.
Strongest point: Zodiac signs (95)To work on: Cross links (75)
Who you are to each other
Each Day Master read as a ten god in the other person's chart.
Person B in Person A's chart
Direct OfficerPower
An in-law who sets the house rules for you (官星): the classic mother-in-law pressure. Polite, clear boundaries work better than silence.
Person A in Person B's chart
Direct WealthWealth
An in-law you want to manage, or who leans on you for practical things. Respect their way of doing things.
The pillars that speak to this relationship
Heaven and earth combine (天合地合)
Your day stems combine and your day branches form a six harmony: one of the strongest classical signs of a bond.
Family lines (year pillars)
The year pillar stands for the family line and its customs (家風).
They combine: this side of the relationship comes easily.
Six HarmonyHousehold (month pillars)
The month pillar is your environment and daily rhythm: how you run a home together.
No direct link: neutral ground you shape yourselves.
No link
Score breakdown
Day Masters
25% of the score
88丁 Dīng and 壬 Rén combine into Wood: a strong natural pull between you.
Day branches
5% of the score
95丑 Chǒu and 子 Zǐ: Six Harmony.
Element exchange
25% of the score
81Person B's chart is 44% Water + Metal, the elements Person A needs most. Person A's chart is 30% Metal + Water, the elements Person B needs most.
Zodiac signs
25% of the score
95Horse and Goat: Six Harmony.
Cross linksLowest
20% of the score
756 combinations and 3 clashes across the two charts.
Friction check
No real weak spot
Even your lowest factor, Cross links, scores 75/100, so the friction between you is mild.
How it shows up, and how to handle it
The sample reading shows how chapter 4, “Friction and how to handle it”, handles a pair like this.
Pillar by pillar
Each column compares the same pillar in both charts: stems on top, branches below.
Hour時
Day日
Month月
Year年
What you give each other
Each chart has elements it needs. A good match supplies some of them.
Person B → Person A
Person B's chart is 44% Water + Metal, the elements Person A needs most.
Person A → Person B
Person A's chart is 30% Metal + Water, the elements Person B needs most.
Get the full compatibility reading
A plain-English AI reading of how your two charts work together, in five chapters: your match at a glance, how you work together, what draws you together, friction, and timing. The first chapter is free.
See a sample compatibility readingHow the score is weighted for in-laws
The same five factors as every ezfate match, weighted for this relationship. Lovers use the classic weights shown in grey.
- 0125%
Day Masters
lovers 25%
Day Masters show how your temperaments meet; combining or feeding pairs make family life easier.
- 0225%
Element exchange
lovers 25%
The element exchange shows whether time together leaves you supported or tired.
- 0325%
Zodiac signs
lovers 10%
Year animals weigh most with in-laws: they stand for the two families and their customs (家風).
- 0420%
Cross links
lovers 15%
Cross links show how often small remarks turn into friction.
- 055%
Day branches
lovers 25%
The day branches matter little unless you live together.
How Bazi reads in-laws

In-laws are two families meeting, so this score leans on the pillars of family: the year pillars (family lines) and the month pillars (the household).
- Year animals (年支), 25%: the two family lines and their customs (家風).
- Household (月柱): how each of you runs a home.
- Day Masters, 25%: how your temperaments meet.
- Roles: an in-law who is your Officer (官星) sets house rules for you; one who is your Resource (印星) is an ally.
The spouse palaces count only 5% unless you live together; if you do, read them as how the shared home feels.
Daughter-in-law and mother-in-law: the classic pattern
In the classical reading of a woman's chart, the husband is the Officer star and his mother is the element that produces it, which lands on her Wealth star (財星): someone she tends to manage, and who tends to test her about running the house. It is one reason the relationship has been famously delicate for centuries.
Your two real charts may say something quite different. If your mother-in-law reads as your Resource (印星), she is more likely an ally; if she reads as your Officer, set kind, clear boundaries early.
House rules and family lines
When your year branches combine (支合, 三合), the two families' ways feel familiar. When they clash, expect different customs around holidays, food and money. Neither is a problem in itself; knowing which you have tells you what to talk about first.
The month pillars show how each of you runs a home day to day: meals, tidiness, money. When they clash, agree on whose house follows whose rules.
Keeping a kind distance
Distance is the classical remedy for clashes, and it is good advice for in-laws: regular, planned contact works better than constant contact. Your partner is the bridge between you.
In-law compatibility chart: the ten Day Masters
Every pairing of Day Masters, scored the way this relationship scores them. Rows are You, columns Your in-law. Select a cell to read the pair.
甲×己
88 / 100 for in-laws
甲 Jiǎ and 己 Jǐ combine into Earth: a strong natural pull between you.
In-law compatibility: questions and answers
Compatibility for other relationships
Same two charts, a different relationship: each page weighs the factors its own way.
- Love compatibilityAttraction, the spouse star and how love feels day to day.
- Marriage compatibilitySpouse palaces, household rhythm and the long run.
- Friendship compatibilityLike-minded or complementary: how your friendship works.
- Parent-child compatibilityThe children's and parents' palaces, and who nurtures whom.
- Work compatibilityBoss, team member or peer: the working dynamic.
- Business partner compatibilityMoney, roles and decisions between partners.
- Sibling compatibilityThe siblings' palace, rivalry and support.
- In-law compatibilityFamily lines, house rules and a healthy distance.
Go deeper
- Bazi compatibility calculatorEvery relationship in one tool, with the pillar-by-pillar comparison.
- Chinese zodiac 2026The year ahead for each of the twelve year animals.
- Five element compatibilityWood, Fire, Earth, Metal and Water, element by element.
- The ten Day MastersWhat each Day Master is like with partners, friends and family.
Ten gods of this relationship
In-law compatibility
The full reading, written for in-laws
Five chapters on these two charts, written for this relationship: your match at a glance, how you work together, what draws you together, friction and timing.
More free tools
- Bazi CompatibilityCompare two charts for love or business.
- The ten Day MastersThe stem of your birth day: who you are in the chart.
- The ten godsFriend, Eating God, Seven Killings and the rest: what each of the ten gods means and how to find yours.
- Five Elements CalculatorFind your element, the balance of Wood, Fire, Earth, Metal and Water in your chart, and what is missing.
- Bazi CalculatorFour Pillars, ten gods, hidden stems, element balance and luck pillars. Free, and no sign-up.
- Chinese Zodiac 2026The year ahead for all 12 animals: love, career, money and health.