Free Contractor & Estimating Tools
Roof Pitch Calculator Online Tool
Free roof pitch calculator. Convert roof rise and run into pitch ratio (X:12), slope angle in degrees, rafter length, and area multipliers.
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Roof Pitch Calculator & Material Estimator
Switch between any trade calculator below or bookmark this direct link for your project estimating.
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📐 Roof Pitch & Slope Multiplier Calculator
Convert roof rise and run into pitch ratio (X:12), angle in degrees, and area multiplier.
Roof Pitch6:12
Slope Angle26.6°
Area Multiplier1.118x
Rafter Length Factor13.42"
Need complex multi-plane roof slope and framing takeoffs?Roof Blueprint Takeoffs →
International Standards
US vs UK Construction Terminology Guide
We work seamlessly with both US CSI MasterFormat and UK/RICS NRM measurement standards.
| US Construction Term | UK / Commonwealth Term | Typical Measurement Unit | Relevant BOQ Service |
|---|---|---|---|
| Drywall / Sheetrock | Plasterboard | Sq Ft / m² | Drywall Takeoff |
| Asphalt Paving | Tarmac / Bitumen Macadam | US Tons / Metric Tonnes | Paving Takeoff |
| Cubic Yards (yd³) | Cubic Metres (m³) | Volume | Concrete Takeoff |
| Lumber / Framing | Timber | Board Feet / m³ | Framing Takeoff |
| Quantity Takeoff (QTO) | Bill of Quantities (BOQ) / QS Take-off | Itemized Bills | BOQ Preparation |
| Cost Estimator | Quantity Surveyor (QS) | Cost Planning | Cost Estimating |
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Construction Calculators Q&A
Frequently asked questions about our construction estimation and calculation tools.