1. What is Percent Slope?

Percent slope is a measure of the steepness or incline of a surface, expressed as a percentage. It represents the ratio of vertical rise to horizontal run multiplied by 100.

2. How Does the Calculator Work?

The calculator uses the percent slope formula:

Where:

• \( Rise \) — Vertical height difference (units)
• \( Run \) — Horizontal distance (units)

Explanation: The formula calculates the percentage of vertical rise relative to horizontal distance, providing a standardized measure of incline.

3. Importance of Slope Calculation

Details: Slope calculation is essential in construction, engineering, landscaping, and various outdoor activities to ensure proper drainage, accessibility, and structural stability.

4. Using the Calculator

Tips: Enter both rise and run values in the same units. Values must be positive numbers, with run greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What units should I use for rise and run?
A: Use consistent units (feet, meters, inches, etc.) for both rise and run measurements.

Q2: What does a 100% slope mean?
A: A 100% slope means the rise equals the run, creating a 45-degree angle.

Q3: How is percent slope different from angle in degrees?
A: Percent slope is a ratio expressed as percentage, while angle in degrees is measured from horizontal. They can be converted using trigonometric functions.

Q4: What is considered a steep slope?
A: Generally, slopes above 25-30% are considered steep, but this varies by application and local regulations.

Q5: Can I use this calculator for negative slopes?
A: This calculator handles positive slopes. For negative slopes (declines), use positive values and interpret the result as a downward slope.