1. What is 2 Percent Slope?

A 2 percent slope represents a gentle incline where the elevation increases by 2 feet for every 100 feet of horizontal distance. This is commonly used in construction, road design, and landscaping to ensure proper drainage and accessibility.

2. How Does the Calculator Work?

The calculator uses the slope percentage formula:

Where:

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

Explanation: The formula calculates the percentage of slope by dividing the rise by the run and multiplying by 100 to convert to a percentage.

3. Importance of Slope Calculation

Details: Accurate slope calculation is crucial for proper drainage, road safety, building foundations, and accessibility compliance. A 2% slope is often the minimum recommended for effective water runoff.

4. Using the Calculator

Tips: Enter the vertical rise and horizontal run in feet. Both values must be positive numbers. The calculator will compute the slope percentage.

5. Frequently Asked Questions (FAQ)

Q1: What does a 2% slope look like?
A: A 2% slope is very gentle - for every 100 feet of horizontal distance, the elevation changes by just 2 feet. It's barely noticeable to the naked eye.

Q2: Where is a 2% slope commonly used?
A: It's used for road crowns, sidewalk cross-slopes, parking lot drainage, and roof pitches where minimal slope is needed for water runoff.

Q3: How does slope percentage relate to degrees?
A: A 2% slope is approximately 1.15 degrees. The conversion formula is: degrees = arctan(slope%/100).

Q4: What's the minimum slope for proper drainage?
A: For most applications, a minimum of 2% slope is recommended to ensure water flows away properly and doesn't pool.

Q5: Can I use different units of measurement?
A: This calculator uses feet, but the formula works with any consistent units (e.g., meters for both rise and run).