Placidus Birth Chart Calculator

This calculator uses the Placidus house system.

The Placidus house system is the most widely used house system in Western astrology. It divides the ecliptic based on time rather than space, creating houses of unequal size that reflect the natural rhythm of the Earth's rotation. This system is particularly effective for psychological and character analysis.

For more features including saving charts, transit charts, synastry charts, and more settings please use True Sky online astrology software.