Angle Converter
Convert between degrees, radians, gradians, percent slope, and slope ratios. Essential for geotechnical slope calculations and earthworks design.
Last updated 19 February 2026
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Angle
1:
Common slope angles
45°
100% or 1:1
26.57°
50% or 1:2
18.43°
33% or 1:3
30°
Typical φ' for sand
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