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Instant roof pitch, angle, slope and rafter calculations for roofers. Converts rise/run, degrees and pitch ratios. By QuoteCore+. Instant roof pitch calculator for roofers, builders and estimators. Converts between rise & run, angle and pitch ratio, and gives you the numbers you actually quote from. Enter any one of the following and get everything else: • Rise & run • Roof angle in degrees • Pitch ratio (e.g. 5:12) Results: • Pitch ratio (x:12) • Angle in degrees • Slope percentage • Rafter length (same unit as your rise/run inputs) • Roof pitch multiplier for converting plan area to actual roof area Extras: • Visual pitch diagram that redraws to your angle • Common roof pitches reference table (1:12 through 12:12) • Copy button to paste results into quotes, emails or notes • Works offline, right from the toolbar - no site visit needed • No permissions, no account, no data leaves your browser Built by QuoteCore+ - free roof takeoff, quoting and trade calculators at quote-core.com.
Aug 18, 2026
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