1. What is Gradient Percentage?

Gradient percentage measures the steepness of a slope or trail, calculated as the ratio of vertical rise to horizontal run multiplied by 100. It's essential for hikers to assess trail difficulty and plan routes accordingly.

2. How Does the Calculator Work?

The calculator uses the gradient formula:

Where:

• \( \text{Rise} \) — Vertical change in elevation (meters or feet)
• \( \text{Run} \) — Horizontal distance (meters or feet)
• \( \text{Gradient %} \) — Slope percentage

Explanation: This formula calculates trail steepness by comparing the vertical elevation gain to the horizontal distance traveled.

3. Importance of Gradient Calculation

Details: Understanding gradient percentage helps hikers evaluate trail difficulty, estimate hiking time, assess physical demands, and choose appropriate routes based on fitness level and experience.

4. Using the Calculator

Tips: Enter rise (vertical elevation change) and run (horizontal distance) in the same units (both meters or both feet). Ensure values are positive numbers greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What is considered a steep gradient for hiking?
A: 0-5% is gentle, 5-10% is moderate, 10-15% is steep, and above 15% is very steep. Trails over 20% are considered extremely challenging.

Q2: How do I measure rise and run on a trail?
A: Use topographic maps, GPS devices, or hiking apps that provide elevation profiles. Rise is the elevation difference between start and end points.

Q3: Can I use different units for rise and run?
A: No, both values must be in the same units (both meters or both feet) for accurate calculation.

Q4: What's the difference between gradient and angle?
A: Gradient is percentage (rise/run × 100), while angle is in degrees (arctan(rise/run)). A 45° angle equals 100% gradient.

Q5: Why is gradient important for hiking safety?
A: Steep gradients increase difficulty, risk of falls, and physical exertion. Knowing gradient helps prepare for trail conditions and choose appropriate gear.