RoofAngler - Free roof pitch calculator — angle, slope & rafter length

RoofAngler 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 with roofing guides. All calculations run in your browser — no account needed, no ads, completely free.

Hey Product Hunt! 👋 I built RoofAngler because every time I searched for a roof pitch calculator, the results were either cluttered with ads, behind a login, or just plain confusing. RoofAngler gives you three input modes — Rise & Run, Angle (degrees), or Pitch Ratio (X:12) — and instantly shows you pitch ratio, angle, slope %, rafter multiplier, and rafter length. There’s also a live SVG diagram that updates as you type, and a reference chart for 20+ common pitches. No account. No ads. No data collected. Everything runs in your browser. Would love your feedback — what other features would make this more useful for homeowners, contractors, or roofers?

RoofAngler - Free roof pitch calculator — angle, slope & rafter length

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