How do you Convert percent incline into a degree measure?

Answer 1

I suppose you mean road gradients which are specified in percent. This means the amount of rise or fall per unit of distance. Thus a gradient of 1 in 5, which means a rise or fall of 1 unit in 5 units of distance, would be stated as 20 percent, that is 20 in 100, which is the same as 1 in 5.

Answer 2

To convert percent incline to degrees, you can use the formula: degrees = arctan(percent incline / 100). For example, if the percent incline is 20%, the calculation would be arctan(20/100) = arctan(0.2) ≈ 11.31 degrees.

Answer 3

Percent grade is the rise divided by the run, or the slope, times 100. Since rise divided by run is slope, and this is the tangent of the angle, the formula is: tan-1(% grade/100). For example, if I wanted to convert a 33% grade to an angle, it would be: tan-1(33/100) = 18.2629 degrees.

Answer 4

degrees = arctan((percent grade)/100)

percent grade = tan(degrees) * 100