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Elevation Grade Calculator — Free Online Tool
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Elevation Grade Calculator

Calculate slope grade percentage, rise-to-run ratio, and angle of inclination

Formula:
• Grade Percentage (%) = (Rise / Run) × 100
• Slope Angle = $\arctan(\text{Rise} / \text{Run})$
Rise & Run Parameters

Calculation Results

⚠️ Proper elevation grading is critical for surface drainage and preventing water accumulation near building foundations. Always verify local site drainage codes.

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