Backfill Quantity Calculator
Calculate backfill volume accounting for pipe displacement and compaction factor with material tonnage estimates.
Inputs
ft
ft
ft
in
Results
Net Backfill Volume
1,121.46 cu ft
Loose Material Needed
1,401.83 cu ft
Material Weight
72.69 tons
Gross Trench Volume1,200 cu ft
Pipe Displacement78.54 cu ft
How to Use This Calculator
- Enter Trench Length, width, and depth — the calculator computes gross volume.
- Set Pipe Diameter and Number of Pipes so their displacement is subtracted from the net fill volume.
- Select Soil Type to apply the correct swell factor (loose material expands 10–30% over compacted volume).
- Read Net Backfill Volume and Loose Material Needed in cu ft — order material based on the loose figure.
- Check Material Weight in tons to size dump trucks and confirm haul costs.
Ad Placeholder
Related Calculators
Trench Volume Calculator
Calculate trench excavation volume using trapezoidal cross-section with truck load and excavation time estimates.
Soil Compaction Calculator
Calculate bank, loose, and compacted soil volumes with swell/shrink factors, moisture requirements, and lift thickness recommendations.
Excavation Cost Calculator
Estimate excavation costs based on volume, soil type, machine rates, and hauling for earth, rock, or mixed material.
Ad Placeholder