Trench Calculator
Calculate the volume of a trench excavation.
How It Works
Volume = Trench Length × Width × Depth. Cubic yards = Volume ÷ 27.
Example
A 50 ft × 2 ft × 4 ft trench is 400 cu ft = 14.8 cubic yards.
Frequently Asked Questions
What trench width should I use?
Trench width is usually the pipe or utility width plus working room — often 12–24 in.
Should I account for sloping?
Shored or sloped trenches have wider tops, so use the average width in that case.
Is this the same as pipe bed volume?
No — the trench holds pipe, bedding, and backfill. This tool gives the total excavated volume.