Cut & Fill Calculator — m, m³ (Slope Grading)
How to use this calculator
Choose a method: Simple for uniform cut or fill, Two-Point for comparing existing vs desired grade, or Grid for 4-corner elevation averaging. Results show cut volume, fill volume, net earthwork, swell-adjusted hauling volume, and truck loads.
Swell factor — soil expands 20–50% when excavated. Clay ~35%, loam ~25%, sand ~15%, rock ~50%.
Trucks — based on 8 m³ dump truck capacity (EU standard).
Saved Calculations
| Time | Method | Area m² | Cut m³ | Fill m³ | Net m³ | Haul m³ | Trucks |
|---|
How to Calculate Cut & Fill Volumes (Metric)
This cut and fill calculator estimates earthwork volumes in cubic meters for site grading. Choose from Simple (uniform depth), Two-Point (linear grade change), or Grid (4-corner elevation averaging). Volumes include soil swell factor adjustment for hauling estimates.
Formulas
Simple: Volume = Area × Depth. Two-Point: Difference at each end = existing − desired. Volume = Area × average difference. Where cut and fill both occur, the crossover point splits the calculation. Grid: Average existing = (C1+C2+C3+C4)/4, same for desired. Swell: Loose volume = Bank volume × (1 + swell %).
Swell Factors by Soil Type
Sand/gravel: 10–20% · Loam/topsoil: 20–30% · Clay: 30–40% · Shale: 35–45% · Rock: 40–60%.
FAQ
Bank vs loose volume? Bank = soil in its natural state. Loose = after excavation, expanded by air voids. Truck capacity? European standard dump truck holds ~8 m³ loose material.
