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Imperial Astrology official artwork for Zi Wei Dou Shu and BaZi Chinese destiny analysis

Imperial Astrology

Free English Zi Wei Dou Shu and BaZi calculators with 12-palace charts, Four Transformations, Four Pillars, Day Master, luck cycles, longitude-based time correction, and instant automatic readings.

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Imperial Astrology official artwork for Zi Wei Dou Shu and BaZi Chinese destiny analysis
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Editor note

Last checked August 5, 2026
  • The free Zi Wei result exposes twelve palaces, Life and Body Palaces, Five Elements Bureau, Four Transformations, stars, and decade ranges without an account.
  • The BaZi page keeps Four Pillars, Day Master, Na Yin, Ten Gods, element balance, and eight luck-cycle steps in one readable English flow.
  • Precise mode accepts exact time and longitude, while the page explicitly asks for the birth location's local clock time.
  • A January 1, 1990 test produced a negative month in the luck-cycle start age and a mismatched current decade, so solar-term boundary results need an independent check.

Best for

Best for English readers who want to explore both Zi Wei Dou Shu and BaZi without signing up and are willing to cross-check timing around solar-term boundaries.

Overview

About Imperial Astrology

Two classical chart systems without an account

Imperial Astrology puts Zi Wei Dou Shu and BaZi in separate free browser calculators. Both forms accept a Gregorian birth date, gender, and a two-hour birth period. An advanced panel adds an exact clock time and longitude, with presets for London, Paris, New York, Los Angeles, Sydney, Beijing, Shanghai, and Taipei. The site asks users to enter local clock time, then applies its longitude-based correction when precise input is enabled.

The Zi Wei Dou Shu result lays out all twelve palaces with Life and Body Palaces, Five Elements Bureau, major and auxiliary stars, Four Transformations, and decade ranges. The BaZi result shows the Four Pillars, Day Master, Na Yin, Ten Gods relationships, element balance, and eight luck-cycle steps.

Plain-English automatic readings are part of the free path

After a chart is calculated, a second free action generates an English reading. Zi Wei Dou Shu readings organize the result into a core portrait, a recurring pattern, and an energy map. BaZi readings continue through the Day Master portrait, strongest and weakest element themes, relationship and career notes, Ten Gods, and the current luck-cycle section. No account was requested during either tested calculator flow.

Public methodology, reference material, and human readings

The site includes a 107-star Zi Wei reference, articles, an editorial policy, privacy and disclaimer pages, and a public MIT-licensed Python chart engine. It says free readings are generated automatically, while paid reports are prepared by a human practitioner. Current one-time prices range from $24.99 for BaZi to $44.99 for the combined report, with separate season-pass subscriptions.

The calculators are new and should be treated as exploratory. In a January 1, 1990 functional check, the BaZi API returned a negative month in the luck-cycle start age and the automatic reading selected a mismatched current decade. Dates near solar-term boundaries deserve an independent chart check before relying on timing details.

FAQ

Are the Imperial Astrology calculators free?

Yes. Both chart calculators and their first-pass automatic readings were available without an account during review. Human-prepared deep readings and season-pass forecasts are paid.

What does the Zi Wei Dou Shu calculator show?

It returns twelve palaces, Life and Body Palaces, the Five Elements Bureau, major and auxiliary stars, Four Transformations, lunar-date details, and decade ranges.

What does the BaZi calculator show?

It returns the Four Pillars, Day Master, Na Yin, Ten Gods relationships, element themes, hidden-stem data, and an eight-step luck-cycle sequence.

Does Imperial Astrology support precise birth time?

Its advanced form accepts an exact local clock time and longitude. The site applies a longitude-based true-solar-time correction before assigning the hour branch.

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