BaZi · Four Pillars
BaZi reads the moment of birth as four pillars — year, month, day and hour — each made of a Heavenly Stem and an Earthly Branch. Enter your birth data and see your chart in Chinese characters and plain words: free, with no account and no AI.
BaZi is a traditional symbolic system. The calculator shows how the tradition reads a chart; it does not predict events or decide anyone’s fate.
Start with 14 days of the Family plan — no card required.
Year, month, day and hour, each with its Heavenly Stem and Earthly Branch — in Chinese characters and with translated names. The hour pillar appears only with an exact birth time.
The stem of the day pillar, the point the whole chart is read from, with the image the tradition gives it: a tall tree, the sun, a mountain.
The stems hidden in every branch and how each stem relates to your Day Master.
How many signs of Wood, Fire, Earth, Metal and Water your chart holds — counts, not strength — and which pillars combine or clash.
Enter your date of birth and, if you know them, the time and place.
See your four pillars, your Day Master and the five phases — calculated from the solar terms, so the same data always gives the same chart.
Check the conventions: the day can change at midnight or at eleven at night, and the time can be official or solar.
Example
Day pillar 丙午: the Day Master is 丙 Bing, Yang Fire, which the tradition pictures as the sun. The month branch 子, the Rat, stands opposite the day branch 午, the Horse, so the calculator marks the pair as a clash. Water appears most often among the eight signs — a count of signs, not a measure of strength.
An illustrative example written for this page — not a reading of any real person. Your reading is built from your own birth data.
No. BaZi uses no planets in signs and houses: it reads the calendar of the moment of birth — the sixty-part cycle of stems and branches and the solar terms. In AstroSensus it is a separate free calculator next to your Western birth chart.
It does not judge the strength of the Day Master, the structure of the chart (Ge Ju) or the useful element (Yong Shen), and it does not compare two charts for compatibility. It does show the luck pillars (Da Yun) and the yearly and monthly pillars. Every sentence on the result is fixed text — no AI writes an interpretation.
No. The calculator is free and works without an account, and your birth data stays only in your browser session. A free account gives you something else: your Western birth chart with its interpretation, a daily forecast and AstroChat.
Start with 14 days of the Family plan — no card required. The BaZi calculator itself is free and needs no account; the trial applies only to an AstroSensus account.
The BaZi calculator itself is free and needs no account; the trial applies only to an AstroSensus account.
Calculate my BaZi chart