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Rise Over Run to Degrees Calculator

Enter every measurement Rise Over Run to Degrees Calculator asks for, then press Calculate. The result stays blank while you are still typing.

Press Calculate after the entries are in.

What Rise Over Run to Degrees is for

Rise Over Run to Degrees Calculator is the page to open when you need rise over run to degrees from measurements you already have. It belongs with the other math calculators because that is the work this arithmetic supports. On a roof, that slope is the roof pitch calculator. Type the entries first. The result stays hidden until you press Calculate, so a half-finished form never flashes a number you might mistake for the answer.

How to fill in this calculator

  1. Rise. Enter the value this part of the job needs.
  2. Run. Enter the value this part of the job needs.

The formula in plain language

Pitch is how far the roof rises for every 12 units of run. Percent grade is the rise divided by the run, times 100. The angle in degrees is the inverse tangent of rise over run.

A worked example

A roof that rises 6 inches for every 12 inches of run is a 6/12 pitch, a 50% grade, and a 26.6 degree angle.

Rise, run, degrees, and percent grade are the same slope. This rise over run to degrees result should agree with percent slope and slope calculator.

Mistakes that move the answer

  • Run is horizontal, not the length of the rafter.
  • A 6/12 pitch is not a 6 degree angle.

How to check the result

After Calculate shows the rise over run to degrees result, redo the last operation with a pencil using the rounded figures on the screen. Matching that check means the inputs were read correctly. If you edit a label or a sentence in this HTML file, reload the page. The form and this article both live in the file, so the edit is what visitors will read.