Grading & Slope Calculator

Calculate cut/fill quantities, slope percentages, slope ratios, and grade break locations for site grading projects.

Existing Elevation

Proposed Elevation

Horizontal Run

Desired Slope

Tab to move between fields

Cut (-) / Fill (+)

2 ft

Actual Slope

Slope Ratio (Run:Rise)50:1

Estimated Volume185.19 cu yd

Grade Break Distance100 ft

How to Use This Calculator

Enter the Existing Elevation and Design Elevation at each end of the slope in feet.
Set the Horizontal Run Distance in feet.
Read Actual Slope (%) — compare against project specs (roads typically 1–5%, parking lots 1–2%).
Check Cut (-) / Fill (+) to know whether material must be removed or imported.
Use Estimated Volume in cu yd to budget earthmoving equipment and material costs.

Ad Placeholder

Related Calculators

Calculate bank, loose, and compacted soil volumes with swell/shrink factors, moisture requirements, and lift thickness recommendations.

Estimate excavation costs based on volume, soil type, machine rates, and hauling for earth, rock, or mixed material.

Calculate asphalt tonnage, volume, truck loads, and material cost for paving projects based on area dimensions and thickness.

Ad Placeholder