Live calculators
Start with the calculators already available for this section, then open the related guides when you need more context.
Area From Coordinates Calculator
Browser-based preliminary check for Area From Coordinates Calculator — fast estimates, not code or stamped design output.
Bearing Capacity Calculator
Terzaghi shallow strip ultimate bearing — teaching estimate, not code output.
Cut & Fill Volume Calculator
Earthwork volumes from plan area and thicknesses or average-end-area prismoid.
Trench Volume Calculator
Browser-based preliminary check for Trench Volume Calculator — fast estimates, not code or stamped design output.
Concrete Volume Calculator
Browser-based preliminary check for Concrete Volume Calculator — fast estimates, not code or stamped design output.
Leveling Error Calculator
Browser-based preliminary check for Leveling Error Calculator — fast estimates, not code or stamped design output.
Rational Method Runoff Calculator
Browser-based preliminary check for Rational Method Runoff Calculator — fast estimates, not code or stamped design output.
Slope Ratio Calculator
Browser-based preliminary check for Slope Ratio Calculator — fast estimates, not code or stamped design output.
Traverse Adjustment Calculator
Browser-based preliminary check for Traverse Adjustment Calculator — fast estimates, not code or stamped design output.
Bearing Azimuth Converter
Browser-based preliminary check for Bearing Azimuth Converter — fast estimates, not code or stamped design output.
Culvert Sizing Estimator
Browser-based preliminary check for Culvert Sizing Estimator — fast estimates, not code or stamped design output.
Detention Volume Helper
Browser-based preliminary check for Detention Volume Helper — fast estimates, not code or stamped design output.
Earth Pressure Calculator
Browser-based preliminary check for Earth Pressure Calculator — fast estimates, not code or stamped design output.
Embankment Volume Calculator
Browser-based preliminary check for Embankment Volume Calculator — fast estimates, not code or stamped design output.
Footing Pressure Calculator
Browser-based preliminary check for Footing Pressure Calculator — fast estimates, not code or stamped design output.
Reinforcement Weight Calculator
Browser-based preliminary check for Reinforcement Weight Calculator — fast estimates, not code or stamped design output.
Retaining Wall Quick Check
Browser-based preliminary check for Retaining Wall Quick Check — fast estimates, not code or stamped design output.
Station Offset Coordinate Calculator
Browser-based preliminary check for Station Offset Coordinate Calculator — fast estimates, not code or stamped design output.
How teams use this section
Use these workflows to choose the right calculator path before moving into deeper analysis or formal design checks.
Earthwork quantity checks
Move from areas and section lengths to cut, fill, and net quantities before detailed terrain modeling or contract measurement workflows.
Preliminary shallow foundation checks
Use bearing-capacity reasoning for early option screening, then confirm allowable pressure decisions with geotechnical data and code-based design.
Site geometry and corridor estimates
Keep simple survey-style calculations close to volume and footing reasoning when site layout and quantities evolve together.
Fast structural-civil coordination
Bridge grading assumptions, bearing checks, and structural reactions early so the design story stays coherent across teams.
Guides for this section
Published guides help explain assumptions, formulas, and the next step after a quick calculator result.
Use this guide when you need quick earthwork quantities with transparent assumptions before detailed survey surfaces and contract pay-item workflows.
Primary tool: Cut & Fill Volume Calculator
Use this guide for first-pass footing discussions when you need transparent ultimate-pressure math before site-specific geotechnical design.
Primary tool: Bearing Capacity Calculator
Rational Method Runoff Basics to support civil / geotech / survey workflows with clearer assumptions and next-step guidance.
Primary tool: Rational Method Runoff Calculator
Civil / Geotech / Survey FAQ
Can these tools replace survey or geotechnical software?
No. They are meant for preliminary quantities and transparent discussion, not final surfaces, settlement analysis, or stamped geotechnical design.
Why show cut/fill and bearing checks in the same section?
They often appear together in early site studies where grading, founding level, and structure concept interact before detailed discipline handoff.
What should always be documented on preliminary civil checks?
Unit system, reference elevations, sign conventions, material factors excluded, and whether values are geometric, net, or adjusted for shrink/swell.