Excavation Volume Calculator

Last updated: 2026-08-24

Inputs
Result
Enter values and press Calculate

How to use it

  1. Calculate net volume: 10m × 6m × 1.5m = 90m³
  2. Apply swell factor: 90m³ × 1.25 = 112.5m³ loose
  3. Calculate truck loads: 112.5m³ ÷ 8m³ = 14.06 → 15 trucks
  4. 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

FieldTypical range
esponjamientoClay: 1.25-1.40, Sand: 1.10-1.15, Rock: 1.40-1.60
anchoAdd 1-2 m working space
profundidadDepends on frost depth and foundation type
largoBased on foundation plan dimensions