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Both calculators run independently — change the inputs on either side to compare results.

Slope Stability Calculator

Compute the factor of safety against sliding failure on an infinite slope using soil strength and groundwater parameters. Used by geotechnical engineers assessing embankments, hillside cuts, and natural slopes.

Slope Angle (degrees)

Soil Cohesion (kN/m²)

Internal Friction Angle (degrees)

Soil Unit Weight (kN/m³)

Failure Plane Depth (m)

Water Table Condition

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Civil

Water Pipe Flow Calculator

Calculate flow rate in a pressurized water pipe using the Hazen-Williams equation. Used by plumbing and civil engineers to size distribution mains, evaluate pump systems, and check hydraulic capacity.

Pipe Diameter (inches)

Pipe Length (ft)

Head Loss (ft)

Hazen-Williams C Value

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Key differences

	Slope Stability Calculator	Water Pipe Flow Calculator
Category	Civil	Civil
Inputs required	6	4
Result	Factor of Safety	Flow Rate (gpm)
What it does	Compute the factor of safety against sliding failure on an infinite slope using soil strength and groundwater parameters. Used by geotechnical engineers assessing embankments, hillside cuts, and natural slopes.	Calculate flow rate in a pressurized water pipe using the Hazen-Williams equation. Used by plumbing and civil engineers to size distribution mains, evaluate pump systems, and check hydraulic capacity.