Roof Pitch Calculator

Unit system

Pitch rise

Pitch run

Building span ()

Roof length ()

Waste (%)

Coverage per bundle ()

Price per bundle (optional)

Currency code (optional)

Instructions

Use the same unit for rise and run. The tool models a symmetrical gable roof, adds both slopes, applies waste and rounds bundle quantities up.

The estimate excludes overhangs, dormers, valleys, ridge materials and complex roofs. Confirm structural dimensions with a qualified professional.