Expert Guide
Land & Survey
Land Slope & Gradient Calculator
Quality Inspector
Find slope percentage and gradient ratio.
📐 Formula & Method
Slope % = (Rise / Run) × 100.
Slope % = (Rise / Run) × 100
📋 Worked Example
1.5m rise over 30m run: • Slope = (1.5/30) × 100 = 5%
❓ Frequently Asked Questions
A 2% to 5% slope away from the house (about 1/4 inch per foot) is ideal for proper drainage.
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