Saju is Korean Four Pillars astrology: your birth year, month, day and hour form four pillars that map out your energy. In Korea it’s the go-to way to check love compatibility, and the same system is known as BaZi in China and Shichu Suimei in Japan.
This test builds the year, month and day pillars from each birthday and scores your compatibility from how the two charts combine. No birth time needed.
The score shows the tendency of how your two energies mix. A high score isn’t a free pass and a low one isn’t a verdict. Use it to see your differences, and as something to talk about.
The 4 things behind your compatibility score
- How your day masters relate
- The top character of your birth day, the day master, stands for you. We look at whether your two day masters feed each other, check each other, or form the combination that pulls two people together.
- How your partner places relate
- The bottom character of your birth day, the day branch, shows how you are with a partner. We check whether your two day branches bond, or tend to collide.
- How the other pillars line up
- Whether your year and month pillars sit in harmony or clash with each other. A hint about whether your daily rhythms match.
- How the five elements fill each other in
- Of Wood, Fire, Earth, Metal and Water, whether each of you has what the other is short on.
How saju finds “when love moves”
Saju reads love timing from how the energy of each year and month meets the chart you were born with. Here, every month gets a love score and we pick the months with a tailwind.
With two birthdays, we scan the next 12 months, filter out the months where either of you should go slow, and find when your shared love score peaks. With just your birthday, we find the next window when your romance energy rises.
The free result shows just one of those months. Why that month, the other months that tend to move, and the months to go slow are in the paid reading (from $1.00).
How to read it for your situation
- Crush: use the month when the distance tends to close as a cue for when to reach out or plan to meet.
- Ex: we show the month when things between you tend to move again. Not a read on their feelings, but a way to sort out how you want to face it.
- Dating: you get the month your bond tends to deepen and your biggest strength as a pair. Where you tend to clash is covered in the paid reading.
- Marriage: a cue for when future talk tends to get easier. Big decisions are for the two of you to talk through.
Love compatibility by day master: the pairs with the strongest pull
There are ten day masters, so 55 possible pairs. Five of them combine (the stem combinations that pull together) and four sit opposite each other (stem clashes). Tap a pair to open its page.
Combinations (5 pairs that pull together)
Clashes (4 opposite pairs)
FAQ
Can I check compatibility without a birth time?
Yes. This test uses your year, month and day pillars. Your day master (you) and day branch (your partner side) come from the date alone, so you get a solid compatibility read without a birth time.
What if I don’t know their birthday?
Check “Don’t know.” With just your birthday you get the month love tends to move and the type you tend to fall for.
Is Korean saju different from Chinese BaZi?
They share the same roots: the new year starts in early February (Ipchun, the start of spring) and months follow the solar terms. SajuBunny follows the readings common in Korean fortune-telling, put into plain, everyday English.
Is this the same as Korean zodiac love compatibility?
Korean zodiac (띠) compatibility compares only your birth years, the twelve animals. Saju compatibility adds the month and day pillars, so it’s the fuller version of a birth chart compatibility reading.
How much is free?
Your compatibility score, your biggest strength as a pair, and one month in the next 12 when love tends to move. Why that month, other months, and where you tend to clash are in the paid reading (from $1.00).
Are my birthdays saved?
The free test runs only in your browser and sends no birthdays to our server. If you go on to a paid reading, your birthdays are still saved only in your browser.
Does a low score mean it won’t work?
No. The score is the tendency of how your two energies combine, not a verdict on how someone feels or on the future. Pairs with big differences often feel the freshest the more they learn about each other.