Double O Contracting
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Project planning tool

Bulk material calculator

Estimate the gravel, stone, sand, soil, or mulch needed for a rectangular project area. Select an actual catalog material so the estimate uses an appropriate bulk density.

Before you measure

  • Measure the longest length and widest width.
  • Use compacted depth, not loose pile height.
  • Keep an overage for compaction and grade variation.
1

Choose a material

Density varies by material, so this selection improves the tonnage estimate.

Category Material
2

Enter project dimensions

This calculator assumes a rectangular area with a consistent installed depth.

Length (feet)
Width (feet)
Depth (inches)
Compaction and overage

Estimates are for planning only. Moisture, gradation, compaction, and local source can change actual yield.

Irregular areas

Split the project into smaller rectangles, calculate each area, and add the results together.

Compacted base

For compactable material, calculate using the finished depth and keep the recommended overage enabled.

Confirm before ordering

Review product specifications and ask your contractor or project designer when exact engineering quantities are required.