Excavation Volume Calculator
Last updated: 2026-08-24
Inputs
Result
Enter values and press Calculate
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How to use it
- Calculate net volume: 10m × 6m × 1.5m = 90m³
- Apply swell factor: 90m³ × 1.25 = 112.5m³ loose
- Calculate truck loads: 112.5m³ ÷ 8m³ = 14.06 → 15 trucks
- Calculate slope perimeter: 2(10+6)×1.5 = 48m² (for shoring estimate)
Common mistakes
- ⚠️ Not accounting for the swell factor when calculating transport volumes
- ⚠️ Insufficient shoring or sloping for deep excavations
- ⚠️ Forgetting extra workspace for formwork of perimeter walls
Worked example
Calculate excavation volume for a pit 10m x 8m x 3m deep with 1.25 swell factor.
Net volume: {vol_neto_m3} m³. Loose volume: {vol_esponjado_m3} m³. Trucks needed: {camiones_8m3}.
Input guide
| Field | Typical range |
|---|---|
| esponjamiento | Clay: 1.25-1.40, Sand: 1.10-1.15, Rock: 1.40-1.60 |
| ancho | Add 1-2 m working space |
| profundidad | Depends on frost depth and foundation type |
| largo | Based on foundation plan dimensions |