사주 · 四柱 · Sa-ju

Your fate, in the language Korea has used for 1,000 years.

Authentic Korean Four Pillars of Destiny — Year, Month, Day, Hour. Five Elements in balance. Ten Gods at work.

Not Western astrology pretending to be Eastern. The real thing. Free. Instant. No signup.

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Don't know your birth time? Use 12:00 — gives a less precise Hour pillar but everything else stays accurate.

The chart math runs in your browser. To generate the free AI narrative, your raw birth fields and derived chart data are sent to Cloudflare Workers and Anthropic. After submission, birth date/time and focus are also placed in the current page address so the result can be reopened; reset removes them. Data & model details.

The Four Pillars (四柱)

Year Pillar 年柱

Your ancestry, where you come from.

Month Pillar 月柱

Your parents, the season of your birth.

Day Pillar 日柱

Your core self. The most important pillar.

Hour Pillar 時柱

Your offspring, the legacy you carry.