Civil Engineering Calculators

This surveying calculator and civil engineering hub covers road and railroad curves, vertical curves, earthwork volumes, footings, and pavement design. Pick a tool below to get an instant result, with the formula and a worked example on each page.

Layout and earthwork math is easy to get wrong by hand. These calculators handle curve geometry, cut-and-fill volumes, and footing sizes quickly, and show every equation so your setout and quantities stay defensible on site.

Browse the calculators

• Vertical Curve Calculator
• Railroad Curve Calculator
• Spiral Curve Calculator
• Earthwork Volume Calculator
• Trapezoidal Footing Volume Calculator
• Column Concrete Fill Calculator
• Pavement Structural Number Calculator
• Miter Cut Calculator
• Square Tube Section Properties Calculator

Frequently Asked Questions

What can I calculate with these civil engineering tools?

Sag and vertical curves, horizontal and railroad curves, earthwork cross-section volume, trapezoidal footings, column fill, and pavement structural number. Each tool covers one task with its formula.

Are these surveying calculators free?

Yes. Every tool on this page is free, requires no signup, and works on mobile and desktop.

Do the tools show the formula used?

Yes. Each page states the equation, defines each variable, and includes a numeric example you can follow step by step.