← Back to tools library
Civil calculator
PublicTrench Excavation Calculator
Estimate trench excavation volumes for utilities, drainage, and service runs. Useful for planning truck movements and spoil disposal.
Calculator inputs
Results
Add your inputs and run the calculator to see results.
How this tool works
Results are instant and based on the values you provide. Validate outputs against drawings, specifications, and project controls before procurement or construction.
Assumptions
- Trench is measured as a uniform rectangular prism.
Practical notes
- Include battering/benching separately where required.
- Apply bulking factors when converting in-situ to loose spoil volumes.