Saju (四柱) is the original four-pillar astrology Korean families have consulted for over 1,000 years — predating Western horoscopes and going far deeper than zodiac signs.
While Western astrology assigns one sign per year, Korean Saju maps four pillars: the year, month, day, and hour of your birth. Each pillar combines a heavenly stem and earthly branch, creating 60 possible combinations — and 60 × 60 × 60 × 60 = 12.9 million unique charts.
Ancestry / early life
Career / social
Self / partner
Children / late life
Korean families historically consulted Saju masters before marriage, business launches, and major life decisions. Our AI distills 1,000+ years of Saju texts and modern interpretations into clear English readings — without losing the depth.
PayPal · all major credit cards accepted · cancel anytime
1. Provide your birth details — date, exact time (hour and minute if known), and birth city. The hour is critical for Saju (Western astrology often skips it).
2. We generate your four pillars — using the traditional Korean lunisolar calendar conversion and verified Saju calculation methods used by Korean masters since the Goryeo dynasty.
3. Our AI interprets your chart — drawing on the 적천수, 자평진전, 명리정종, and modern Korean Saju practitioners' frameworks.
4. You receive your reading by email — within 24 hours for single, instantly via dashboard for monthly.
They share roots in the same classical texts, but Korean Saju emphasizes the Day Master (일간) more heavily and uses Korean-specific interpretation lineages developed over the Joseon dynasty. The frameworks have diverged over 600+ years.
No — Vedic astrology is sidereal and planetary, Saju is calendrical and elemental. They answer different questions about the same person.
No. Many Koreans treat Saju as a cultural framework for self-reflection, similar to MBTI in the West — useful regardless of metaphysical belief.
Provide what you have — many readings are insightful even without the hour. The day pillar (the core) is always available from just the date.