Slope Percentage Calculator

How to Use This Calculator

1. Enter the vertical change (rise) in the first input field. This is the difference in height between two points.
2. Enter the horizontal change (run) in the second input field. This is the distance between the two points along the horizontal axis.
3. Click the "Calculate" button to compute the slope percentage.
4. The results will show the slope percentage (as a percentage), the slope ratio (rise:run), and the slope as a decimal.

Understanding Slope Percentage

Slope percentage is a way to express how steep a line is. It's calculated as:

Slope Percentage = (Rise / Run) × 100%

This value tells you how many units of vertical change occur for every 100 units of horizontal change.

Applications of Slope Percentage

• Construction and Architecture: Determining roof pitch, stair gradients, and site grading
• Geography and Surveying: Measuring terrain steepness and calculating drainage slopes
• Roofing: Calculating the pitch of a roof for material selection and installation
• Transportation: Determining road gradients and visibility challenges

Example

If you have a rise of 5 meters and a run of 20 meters:

Slope Percentage = (5 / 20) × 100% = 25%

This means the slope rises 5 meters for every 20 meters of horizontal distance, or that the roof rises 25% of its width at any point.