✦ Big Three Calculator ✦

The three pillars of a birth chart: your Sun (core self), your Moon (emotional nature), and your Rising (outer style). Together they tell a fuller story than any one sign alone.

Simplified calculation — approximate near sign cusps. Accurate birth time matters most for the Moon and Rising signs. Without a birth time, your Rising cannot be calculated and your Moon is computed for midday. Your birth data is calculated in your browser and never sent or stored.