How do you calculate pitch of a roof Posted by Calculator Study March 29, 2025 Roof Pitch Calculator - Calculate Roof Slope Accurately Calculate Your Roof Pitch Rise (inches): Run (inches): Calculate Pitch Clear Roof Pitch Formula Pitch = Rise ÷ Run (Converted to X:12 ratio) Example: 6" rise / 12" run = 6:12 pitch Social Security Retirement Age Calculator Post navigation Previous Post Calculating roof pitchNext PostCalculate roof pitch