FateChart

Free Zi Wei Dou Shu Calculator

Purple Star Astrology — your 12 palaces and stars, mapped instantly from your birth time.

Your birth details are used only to calculate the chart. Your data stays yours. Privacy Policy

Zi Wei Dou Shu (紫微斗数), or Purple Star Astrology, is a refined system of Chinese astrology that arranges over a hundred stars across twelve "palaces" — Life, Wealth, Career, Marriage, Travel and more.

The position of the major stars (led by the Purple Star, Zi Wei) in each palace, together with your Soul and Body stars and your Five Elements class, paints a detailed portrait of your character and the different arenas of your life.

The chart also computes your real timing layers: every palace is stamped with its ten-year decade cycle (大限, Da Xian) age range, your current decade is highlighted, and the chart shows which palace this year’s annual cycle (流年, Liu Nian) activates — so you can see not just your nature, but which arena of life is lit up right now.

FateChart builds your complete Zi Wei chart for free. For a palace-by-palace reading and AI-guided guidance on love, money and career timing, unlock a premium reading.

Frequently asked questions

How accurate does my birth time need to be?

Zi Wei Dou Shu is time-sensitive: the birth hour sets your palaces. A known hour gives the most precise chart.

Is the Zi Wei chart free?

Yes — the full chart, all 12 palaces and stars, is free. Only the detailed interpretation is paid.

What are the 12 palaces?

They are twelve life domains — such as Life, Wealth, Career and Marriage — each governed by the stars that fall in it.

Does the calculator show Da Xian (decade cycles)?

Yes. Each palace displays its ten-year Da Xian age range, computed from your Five Elements class and the classical direction rule (yang-year males and yin-year females run forward). Your current decade palace is highlighted, and the chart also names the palace activated by this year’s Liu Nian.