| What it does | Free Four Pillars chart and analysis with auditable calculation and optional AI-powered readings
| Free Four Pillars of Destiny chart calculator with true solar time
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Freemium
| Freemium
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| Pricing | Free Bazi chart with no account required. Personal Bazi Report costs $14.99 USD per saved chart, one-time payment with no subscription, available in English, Traditional Chinese or Japanese. Free summary available for saved charts.
| Charts and tools free. AI readings: 1 reading for $4.99, 3 readings for $9.99, 10 readings for $19.99.
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| Key features | - Four Pillars of Destiny chart generation
- Day Master identification
- Five Elements balance analysis
- Ten Archetypes (Ten Gods) reading
- Decade-by-decade Life Chapters
- True solar time correction
- Shareable chart with OG image
- Optional AI-powered readings for deeper interpretation
- Three-pillar analysis when birth time is unknown
| - Four Pillars with hidden stems and heavenly stems and earthly branches
- Day Master calculation and analysis
- Ten Gods relationship mapping
- Five Elements distribution with visible and hidden stems
- Luck Pillars with ten-year periods and annual pillars
- True solar time calculation with longitude and equation of time correction
- Two-chart comparison showing stem/branch relations
- Export and print functionality including PDF and JSON download
- Time range input for uncertain birth times
- Bilingual interface in English and Simplified Chinese
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| What makes it different | - Calculation before interpretation: deterministic chart generation by rule, with AI only explaining results upon request
- Privacy-first approach with no required account and transparent data handling
- Based on classical Chinese texts with auditable, reproducible calculation methods
- Transparent editorial boundaries separating calculation, tradition, interpretation, and AI
- True solar time method with historical UTC offset and birth-city longitude for accurate Hour Pillar placement
| - All calculation rules published and adjustable, showing which rule produced each result
- Solar-term boundaries computed astronomically to the minute with historical time zone accuracy
- No prediction claims; presents charts as cultural and reflective, not scientific forecasts
- Works without birth time by showing stable and candidate pillars
- No account required for calculation; optional saving and one free AI reading after Google sign-in
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 18 ▼ −1 (down) since last check | 11 ● no change since last check |
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| Trust Flow (Majestic) | 18 | 9 |
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| Citation Flow (Majestic) | 25 | 30 |
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| Referring domains (Majestic) | 63 | 45 |
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BaziCalculator.ai
BaZi Calculator