1. What is Land Slope Calculation?

Land slope calculation measures the steepness or incline of a terrain, expressed as a percentage. It's essential for construction, agriculture, drainage planning, and land development projects.

2. How Does the Calculator Work?

The calculator uses the slope formula:

Where:

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

Explanation: The formula calculates the ratio of vertical change to horizontal distance, multiplied by 100 to convert to a percentage.

3. Importance of Slope Calculation

Details: Accurate slope measurement is crucial for proper drainage design, foundation planning, road construction, agricultural terracing, and preventing soil erosion.

4. Using the Calculator

Tips: Enter rise and run values in meters. Both values must be positive numbers. The result will be displayed as a percentage slope.

5. Frequently Asked Questions (FAQ)

Q1: What is considered a steep slope?
A: Generally, slopes above 15% are considered steep, while slopes above 25% may present significant challenges for construction.

Q2: How is slope different from angle?
A: Slope is expressed as a percentage (rise/run × 100), while angle is measured in degrees. A 45° angle equals a 100% slope.

Q3: Why is slope important in construction?
A: Slope affects drainage, foundation stability, accessibility, and determines what construction methods and materials are appropriate.

Q4: Can this calculator be used for roof pitch?
A: Yes, the same formula applies to roof pitch calculations, though roof slope is often expressed as a ratio (e.g., 4:12).

Q5: What's the maximum slope for wheelchair access?
A: ADA guidelines recommend a maximum slope of 1:12 (8.33%) for wheelchair ramps, with 1:20 (5%) being preferable.