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iOS product

Added May 8, 2026

Roof Pitch Calculator – Free pitch, angle & rafter calculator

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About the product

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, no data collected, completely free.
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  • Back in the X and Threads rotation: Roof Pitch Calculator gets posted again instead of once.
  • A promoted slot on the AppRater homepage, carrying a Promoted badge.
  • A direct link to Roof Pitch Calculator from a DR45 site (Ahrefs Domain Rating), with no redirect in between.
  • A labelled spot in the weekly email to AppRater subscribers, one promoted app per issue.
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Quarterly promotion

$35USD every 3 months

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