Trench Fill Calculator
Calculate backfill material for utility trenches. Enter trench dimensions and fill material type for cubic yards and tons.
โ๏ธ Trench Fill Calculator
Results
Volume60.00 cu ft
Volume2.2 cu yd
Weight3.1 tons
๐ก How to Calculate Trench Fill Volume
Trench fill volume = length ร width ร depth. For utility trenches, the fill typically consists of bedding material (sand or pea gravel around the pipe) and backfill (native soil or gravel above). Pipe diameter reduces the fill volume slightly.
Standard utility trench widths: 12 inches for small pipes (water, electrical), 18โ24 inches for sewer and drain pipes, 36โ48 inches for large utilities. Compact backfill in 6-inch lifts to prevent settlement. Use clean fill โ no rocks, debris, or organic material.
A 30 ft trench, 12 inches wide ร 24 inches deep with gravel fill: volume = 60 cu ft = 2.2 cu yd โ 3.1 tons.