Slope gradient converter
Gradient
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Frequently asked questions
What gradient is a black run?
Black runs (expert) typically exceed 25-27° (around 50%+ gradient), though there's no universal standard — grading factors in width, obstacles and exposure too. Reds are roughly 18-27°, blues 10-18°, and greens under 10°. European grades tend to be steeper than equivalent North American ones.
Is a 100% slope vertical?
No — a 100% gradient is 45°, where the vertical drop equals the horizontal distance. A vertical cliff would be infinite percentage. This is a common misconception; percentage and degrees are related by the tangent function, not linearly.