What's My
Saju?

Saju (사주) is a traditional Korean astrology system that uses your exact birth year, month, day, and hour to describe your personality, relationships, and career tendencies. It's based on the Four Pillars of Destiny (사주팔자) — eight characters that capture the cosmic energy of your birth moment.

Saju is a tradition refined over a thousand years across Korea, China, and Japan, and millions of Koreans still enjoy it as a lens for reflecting on personality and relationships. It isn't a science and can't predict the future — WhatsMySaju readings are for entertainment and self-reflection. The chart itself is calculated precisely from your birth details; how much the interpretation resonates is up to you.

Western astrology groups everyone born in the same month into one of 12 signs. Saju uses your exact birth hour, creating a chart unique to a two-hour window. It's based on the Five Elements (오행) and the interaction of Heavenly Stems and Earthly Branches, not planetary positions.

Knowing your birth hour gives you the most precise reading — it determines your Hour Pillar, which represents your inner world and later life. If you only know the approximate time of day, you can still get a meaningful reading from your Year, Month, and Day pillars.

Yes — saju and bazi (八字) come from the same East Asian metaphysical tradition. Saju is the Korean name and tradition; bazi is the Chinese version. The calculation is essentially identical, though Korean and Chinese practitioners emphasize slightly different interpretive frameworks.

Your basic saju reading — Four Pillars chart, Day Master personality, and Five Elements balance — is completely free. We offer a one-time premium upgrade for deeper analysis (love, career, money, compatibility), but you'll never be charged a subscription.

Most English-language saju sites use generic templates or rough translations. WhatsMySaju uses a purpose-built saju engine for precise chart calculation, then generates a personalized reading in natural English using AI — making the depth of authentic Korean saju accessible globally for the first time.

Yes. Saju compatibility is called 궁합 (gunghap) and analyzes how two charts interact — emotional chemistry, communication patterns, and where you complement each other. You can run a compatibility reading with a partner, friend, or anyone whose birth date and time you know.