Excavation Calculator
Length × width × depth of the hole or trench prism.
Step 1: Units
Step 2
Enter project measurements
Use decimals if needed (e.g. 3.5).
Step 3
How to use this calculator
Inside dimensions of the cut before shoring adjustments.
What the math is doing
Volume = length × width × depth.
Frequently asked questions
Batter slopes?
Break into prisms or average width.
Groundwater?
Dewatering is a separate scope item.
Haul off vs reuse?
Volume helps truck counts either way.
Shrinkage?
Fill calculators add compaction factors separately.