// LAUNCH FILE·Sep 21, 2026
Roof Pitch Calculator
Free roof pitch calculator — pitch ratio, angle, slope & rafter length
Productivity
// BRIEF
Roof Pitch Calculator is a free tool for homeowners, contractors, and roofers. Enter rise and run, a degree angle, or a pitch ratio (X:12) to instantly calculate pitch ratio, angle in degrees, slope percentage, rafter multiplier, and rafter length. Includes a live SVG roof diagram, a reference chart of 20+ common roof pitches, and a blog covering roofing guides. All calculations run in your browser — no account needed, no ads, completely free.
// GALLERY
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// DISCUSSION
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// REVIEWS
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// ANALYTICS
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