1. What is the Slope Angle to Feet Rise Calculation?

The slope angle to feet rise calculation converts an angle in degrees to the vertical rise in feet for a given horizontal run. This is essential in construction, engineering, and landscaping for determining slope steepness.

2. How Does the Calculator Work?

The calculator uses the trigonometric tangent function:

Where:

• \( \text{Angle} \) — Slope angle in degrees
• \( \text{Run} \) — Horizontal distance in feet
• \( \pi \) — Mathematical constant pi (~3.14159)

Explanation: The tangent of the angle (converted to radians) gives the ratio of rise to run, which is then multiplied by the run distance to get the actual rise.

3. Importance of Slope Angle Calculation

Details: Accurate slope calculations are crucial for building code compliance, drainage planning, wheelchair ramp design, and determining safe grades for roads and walkways.

4. Using the Calculator

Tips: Enter angle in degrees (0-90) and run in feet. The calculator will output the vertical rise in feet. Ensure angle is between 0 and 90 degrees for valid results.

5. Frequently Asked Questions (FAQ)

Q1: What's the maximum angle this calculator can handle?
A: The calculator accepts angles from 0 to 90 degrees. At 90 degrees, the rise would theoretically be infinite.

Q2: How accurate is this calculation?
A: The calculation is mathematically precise, but actual site conditions may vary due to terrain irregularities.

Q3: Can I use this for metric units?
A: This calculator uses feet. For meters, you would need to convert the run distance or the final result.

Q4: What's the relationship between degrees and percentage grade?
A: Percentage grade = tan(angle) × 100. This calculator gives the actual rise, not the percentage.

Q5: When would I need this calculation?
A: Common uses include roof pitch determination, landscape grading, ADA ramp design, and road construction planning.