BaZi, Zi Wei Dou Shu, Western astrology, Qi Zheng Si Yu and synastry are five projections of one structure — not one answer repeated five times. Only conclusions supported by two or more systems are marked high-confidence.
Birth time to the minute and birthplace to the district — a minute-level error can flip the hour pillar, and without coordinates true solar time cannot be computed. Everything runs locally in your browser; nothing is uploaded.
Major world cities are included; if yours is missing, choose "custom coordinates" — any location on Earth works.
＋ Synastry (optional): add a partner's birth data for cross-aspects · house-overlay ratio · nodal axis
＋ Fact anchor (optional, strongly recommended): give one real number so the model may speak of magnitude
Anchor to a real peak, not a post-collapse low — modelling from a collapsed year drags the whole chart down. If left blank, only relative scales and magnitudes are given, never absolute amounts.
Cultural-reference notice:This tool computes from traditional calendrics, classical texts and modern astronomical algorithms, for cultural study and self-reflection only. Fate study does not predict the future; it describes structure and judges where potential flows. All output is expressed as tendency / window / structure, and is not a prediction, a fate-change claim or a decree, nor a basis for medical, financial, relationship or legal decisions. Conversion coefficients are empirical scales with ±50% error and do not constitute a financial forecast.