Slope Percentage Calculator

Overview

The Slope Percentage Calculator helps you determine the steepness of a slope. You can input the vertical rise and horizontal run, or directly input the angle of inclination. The tool provides the slope as a percentage and visualizes it with a diagram.

Use Cases

• Civil engineering and construction for road grades, ramps, and drainage.

• Landscaping and surveying to determine land inclination.

• Accessibility calculations for ramps (e.g., ADA compliance).

• Mathematics and physics education to understand slope concepts.

• DIY projects involving inclines or declines.

How It Works

You can calculate the slope percentage in two ways: 1. Using Rise and Run: Enter the vertical rise (change in height) and the horizontal run (change in distance). The slope percentage is calculated as (Rise / Run) * 100. The angle of inclination is also derived. 2. Using Angle of Inclination: Enter the angle in degrees or radians. The tool converts the angle to radians if necessary, then calculates the slope as tan(angle_in_radians), and the slope percentage as tan(angle_in_radians) * 100. The "Solution" tab shows the primary result (slope percentage) and a diagram. The "Steps" tab shows the formula used.

Tips for Better Usage

• Ensure Rise and Run are in the same units for accurate calculations.

• A 100% slope corresponds to a 45-degree angle (where rise equals run).

• A slope of 0% is a flat, horizontal surface.

• Pay attention to the "deg" (degrees) or "rad" (radians) setting when inputting an angle.