Free birth chart compatibility test, the Korean way (gunghap)
In Korea, birth chart compatibility is called gunghap (궁합). It compares two Saju charts in three ways: how your Day Masters' elements interact (does one feed or check the other?), whether your day animals clash or combine, and whether each chart supplies an element the other one lacks. A clash doesn't mean a bad match. It shows where friction tends to show up and what to do about it.
1. Day Master to Day Master
There are five possible relationships between two elements. Each one has a typical feel.
| Relationship | Example | How it tends to feel |
|---|---|---|
| Same element | Fire + Fire | Easy to understand each other; can compete or amplify each other's worst habits |
| You feed them | Wood → Fire | You give energy and they shine; watch for you running on empty |
| They feed you | Water → Wood | You feel supported and understood; watch for leaning too hard |
| You check them | Metal → Wood | You bring structure; to them it can feel like criticism |
| They check you | Water → Fire | They keep you grounded; to you it can feel like being shut down |
2. Clashes and harmonies between animals
Saju compares the animals (Earthly Branches) in both charts. Popular zodiac compatibility only looks at birth-year animals; gunghap puts extra weight on the day animal, which is traditionally read as your partner spot.
| Type | Pairs | Traditionally read as |
|---|---|---|
| Six harmonies | Rat–Ox · Tiger–Pig · Rabbit–Dog · Dragon–Rooster · Snake–Monkey · Horse–Goat | Natural pull; easy to cooperate |
| Six clashes | Rat–Horse · Ox–Goat · Tiger–Monkey · Rabbit–Rooster · Dragon–Dog · Snake–Pig | Opposite rhythms; sparks, arguments, growth if handled |
3. Filling each other's gaps
If your chart has almost no Water and theirs is full of it, gunghap reads them as bringing something you lack: calm, perspective, flexibility. Complementary balance often matters more to Korean readers than a perfect Day Master match.
It's not only for couples
Koreans use the same logic for bosses, cofounders, in-laws, and friends. The questions are the same: who sets the pace, who runs hot, who says things directly, and where you'll misread each other.
FAQ
Is a clash a bad sign?
Not in modern readings. A clash marks the spot where two people's rhythms differ, which is also where couples grow when they talk about it. Readers treat it as a map of where to be patient, not a verdict.
What's the best match for my zodiac sign?
In popular zodiac lore, your six-harmony partner and your two "trine" animals are called best matches. Rat, Dragon, and Monkey form one trine; Ox, Snake, and Rooster; Tiger, Horse, and Dog; Rabbit, Goat, and Pig. Saju reads the whole chart, so year animals are only one piece.
Birth chart compatibility with time: do we both need birth times?
No. Dates are enough for the Day Master comparison. Birth times add the hour pillars and a little more detail, so add them if you know them.
Is this the same as a composite chart?
No. A composite chart is a Western astrology technique that blends two charts into one. Gunghap keeps both charts separate and compares them side by side: who feeds whom, who checks whom, and where the animals clash.
Enter two birthdays to see your pace, heat, and directness side by side, plus what to say.
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