SlopeCalc
Calculator

Percent = tan(θ) × 100

Convert slope degrees to percent

Enter an angle strictly between −90° and 90°; trigonometric results are displayed as approximations.

Private browser calculation

Choose the known representation

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Calculation mode

Known values and units

Enter an angle strictly between −90° and 90°.

SlopeCalc handles ideal geometric slope only. It does not determine permissible grades, building-code compliance, accessibility, drainage, traction, structural design, or measurement uncertainty.