Free Bazi Calculator | 八字排盘

A Bazi calculator converts your birth date, time and location into your Four Pillars of Destiny chart — the Year, Month, Day and Hour pillars, each made of a Heavenly Stem and an Earthly Branch. This calculator also derives your Day Master, Ten Gods, hidden stems, Shen Sha stars, seasonal strength and 10-year Luck Pillars.

Yes. The full chart — including Luck Pillars and the PDF download — is free, with no account and no payment. Master Yuan offers paid consultations for those who want their chart professionally interpreted, but the calculator itself has no catch.

Your birth date, birth time (as close as you know it), gender (used only to determine the direction of your Luck Pillars) and birth city. If you don't know your birth time, tick "I don't know my birth time" — the year, month and day pillars remain accurate.

Bazi hours follow the sun, not the clock. Solar time adjustment corrects your clock time for your birth location's longitude and the equation of time. In Singapore the correction is roughly minus 61 minutes, which can move births near an hour boundary into a different hour pillar — and births near 11pm into a different day pillar.

Possibly. Singapore used UTC+7:30 from 1946 to 1981 and only moved to UTC+8 on 1 January 1982. This calculator applies the correct historical timezone for Singapore and West Malaysian cities automatically, including the 1942–1945 occupation years (UTC+9). Many other calculators miss this and can cast the wrong hour pillar.

The Day Master (日主) is the Heavenly Stem of your Day Pillar and represents you. There are ten: Yang and Yin Wood (甲/乙), Fire (丙/丁), Earth (戊/己), Metal (庚/辛) and Water (壬/癸). Every other element in your chart is interpreted through its relationship to your Day Master.

The Ten Gods (十神) describe how each stem in your chart relates to your Day Master: 比肩 and 劫财 (peers and competition), 食神 and 伤官 (output and expression), 偏财 and 正财 (wealth), 七杀 and 正官 (pressure and authority), 偏印 and 正印 (support and learning). They map life domains — career, money, relationships, creativity — onto your chart.

Luck Pillars (大运) are ten-year cycles that begin at a starting age calculated from your birth — the distance in days to the nearest solar term, converted at three days per year. Each pillar introduces a new stem and branch that interact with your birth chart, which is why the same person experiences different decades so differently. The calculator shows your starting age and the exact year each pillar begins.

The month you were born sets the season (月令), and the season decides which element is strongest in your chart. Spring strengthens Wood, summer Fire, autumn Metal, winter Water, with Earth peaking in the transition months (辰未戌丑). Your Day Master's strength against the season — 旺相休囚死 — is the foundation of chart judgement.

Tick "I don't know my birth time." Your year, month and day pillars — including your Day Master and Luck Pillars — remain accurate; only the hour pillar is omitted. A practitioner can sometimes rectify an unknown birth time from major life events.

Your zodiac animal is just the Earthly Branch of your year pillar — one-eighth of your chart. Bazi reads all eight characters and their interactions, which is why two people born in the same year can have completely different charts and lives.

Bazi maps tendencies and timing, not fixed fate. It shows the elemental weather of your decades — when conditions favour career pushes, caution, study or consolidation. What you do inside that weather remains your decision. As practitioners say: 命 is the hand you were dealt; 运 is how the game unfolds; strategy is still yours.