What's
My Saju?

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

Saju has been refined for over a thousand years across Korea, China, and Japan. While no system can predict the future with certainty, millions of Koreans use saju as a framework for understanding personality, timing major decisions, and choosing partners. Most users find the personality and pattern descriptions strikingly accurate.

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 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 come from the same East Asian tradition. Saju is the Korean name and practice; bazi is the Chinese one. 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, life timing, 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 accurate 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 analyzes how two charts interact — emotional chemistry, communication patterns, and long-term harmony. You can run a compatibility reading with a partner, friend, or anyone whose birth date and time you know.