Roofpitchtools.com provides free, accurate calculators for roof pitch, roof area, rafter length and material estimates. They are designed for homeowners, DIYers and tradespeople who need quick numbers without spreadsheets.
We focus on practical accuracy. Results are estimates — always confirm with your supplier and local building codes. No account is required and nothing is stored on our servers.
Questions or suggestions? Email info@roofpitchtools.com.
Roof pitch and area numbers show up in material quotes, DIY planning and conversations with contractors. Many people only have a rise/run from the loft or a pitch written on a drawing and need a clear multiplier, angle or rafter length.
Roof Pitch Tools provides free calculators and short guides so you can check those numbers yourself. Results are estimates for education and planning—not engineering approval or a substitute for safe professional work on a roof.
Read the guides for measurement and chart explanations, then use the calculators with your own dimensions.