Zi Wei Dou Shu Calculator
The Purple Star chart — twelve palaces, the stars that sit in them, and what each one is actually counted from. Then read in plain language.
- All fourteen major stars placed by the classical rules, with your year's Four Transformations
- Life Palace, Body Palace, Element Bureau and Life Star — the spine of the chart, with its reasoning shown
- Cast from true solar time, with the lunar month and the hour branch done properly
Your twelve palaces
Read anticlockwise from the Life Palace, marked in red. Each cell shows its earthly branch, the palace it holds, and the stars that fall there.
The spine of the chart
Four things a Zi Wei reading turns on before anything else is said.
Four Transformations
The year stem of your birth turns four stars. These are where the chart concentrates its gain, its authority, its reputation and its friction.
A Zi Wei chart is a map of emphasis, not a schedule of events. Where the stars fall tells you which parts of life carry the weight.
Your AI Zi Wei reading
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A written Zi Wei reading worked through by hand — the twelve palaces read against each other, not one at a time.
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Questions people ask
How is Zi Wei Dou Shu different from Bazi?
Same birth data, different instrument. Bazi reads eight characters and their five-element weather; Zi Wei lays twelve palaces and places stars into them, so it speaks more directly about the areas of life — career, marriage, property, friends. Serious readers use the two side by side.
What is the Life Palace?
The anchor cell of the chart, fixed by your lunar birth month and your birth hour. Which stars land there — or whether it sits empty and borrows from opposite — sets the tone the other eleven palaces are read against.
What are the Four Transformations?
Your birth year's stem turns four stars: one toward gain, one toward authority, one toward reputation, one toward friction. They show where the chart concentrates its energy — the friction star in particular tells you which palace carries the recurring lesson.
Why does the birth hour matter so much here?
The hour fixes the Life Palace itself. Move the hour and the whole wheel turns: every star keeps its branch, but every palace changes its name. If your hour is uncertain, cast the neighbouring hours too and see which chart you recognise.