Engineering / Build the ground.
Civil
Earthwork, drainage, surveying, and foundation sizing for civil engineers, surveyors, and sitework contractors.
13 tools available
Cut/Fill Volume Calculator
Compute net cut and fill volumes with shrink and swell.
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Traverse Closure & Bowditch Adjust
Compute misclosure and adjusted coordinates.
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Horizontal & Vertical Curve Solver
Solve PC, PT, and station offsets for any curve.
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Coordinate Inverse & Forward
Convert between DMS coordinates and azimuth/distance.
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Slope & Grade Calculator
Express slope in pitch, percent, ratio, and angle.
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Culvert & Storm Pipe Sizing
Compute design Q and pipe diameter with Manning's equation.
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Aggregate Tonnage Calculator
Compute cubic yards, tons, and bag counts for any job.
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Open Channel Flow & Manning Velocity
Compute uniform flow for a ditch, swale, or channel cross-section.
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Catch Basin & Inlet Sizing
Sump and grate capacity check against design Q.
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Riprap & Outlet Protection Sizing
Stabilize a culvert outlet with the right stone size.
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Shrink & Swell Bank-to-Compacted Cubic Yards
Convert bank yards to compacted or loose yards using shrink/swell factors.
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Stormwater Detention Volume
Size a detention basin for pre- vs. post-development runoff.
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True ↔ Magnetic Bearing Converter
Convert true azimuth to magnetic with local declination.
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