1. What is the Angle of Slope Calculation?

The angle of slope calculation converts a slope ratio (rise over run) into degrees, which is commonly used in UK construction, landscaping, and engineering to describe incline steepness.

2. How Does the Calculator Work?

The calculator uses the trigonometric formula:

Where:

• \( Slope \) — The ratio of vertical rise to horizontal run (unitless)
• \( \arctan \) — Inverse tangent function
• \( \frac{180}{\pi} \) — Conversion factor from radians to degrees

Explanation: The arctangent function converts the slope ratio to an angle in radians, which is then converted to degrees for more intuitive understanding.

3. Importance of Angle Calculation

Details: Knowing the angle of slope is crucial for construction safety, wheelchair ramp design, road engineering, and determining suitable gradients for various applications in the UK.

4. Using the Calculator

Tips: Enter the slope value (rise divided by run) as a unitless number. For example, a 1:10 slope would be entered as 0.1.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between slope and angle?
A: Slope is a ratio (rise/run) while angle is the actual incline measured in degrees from horizontal.

Q2: What's the maximum recommended slope for wheelchair access in the UK?
A: The UK generally recommends no more than 1:12 slope (about 4.76°) for wheelchair ramps.

Q3: How does this relate to percentage grade?
A: Percentage grade is slope × 100. A 45° angle equals 100% grade.

Q4: What's considered a steep slope in the UK?
A: In UK construction, slopes above 20° are generally considered steep and may require special considerations.

Q5: Can this calculator handle negative slopes?
A: This version calculates positive angles only. Negative slopes would indicate downhill gradients.