Free tool · Saju calculator
Free Saju calculator, in English.
Your birth data in. Your chart out.
Enter your birth date, time, and city. Get your Korean Four Pillars chart, day master, and element balance — free, no account. The full 9-section reading is a $4.99 one-time unlock.
Free No account needed Under a minute
What The Chart Reads
A sample chart, so you know what you get.
Every pillar has a heavenly stem above an earthly branch — eight characters in all. Yours renders the same way, from your exact birth data.
The highlighted character is the day master — 甲 The Oak, Yang Wood. The other seven characters are read against it.
Element balance
- 木Wood
- 3
- 火Fire
- 1
- 土Earth
- 3
- 金Metal
- 0
- 水Water
- 1
How It Works
Three steps, under a minute.
- Step 1
Enter your birth data
Date, time, and city. No birth time? Skip it — you still get three of the four pillars.
- Step 2
Get your four pillars
The calculator maps your birth into eight characters across the year, month, day, and hour pillars.
- Step 3
Read your day master & balance
See the character your chart is built around and which of the five elements run strong or thin.
Common Questions
Q.Is it really free?
Yes. Your Saju card — four pillars chart, day master, and element balance — is free and needs no account. The full 9-section written reading is a $4.99 one-time purchase, not a subscription.
What Saju reads →Q.Do I need my exact birth time?
No. Year, month, and day give you your day master and elemental balance. The hour pillar adds timing detail — add it anytime to complete the chart.
The four pillars →Q.Is Saju the same as Bazi?
Same Four Pillars root (八字). Bazi is the Chinese lineage; Saju is the Korean one, with its own interpretive conventions. This calculator reads the Saju tradition.
Saju vs Bazi →Q.Is this fortune telling?
No. The calculator maps patterns from your birth data — what runs strong, what drains you, what to practice — as software-generated reports for self-reflection and entertainment.
The ten day masters →New To Saju?
Reading about charts is one thing. Seeing yours is another.
Your free Saju card shows your day master, four pillars, and elemental balance — generated from your exact birth data. Want the background first? The primer covers the day masters, the four pillars, and the five elements.
Free No account needed Under a minute