Cement Pack ProConcrete quantity tools

Materials & supply

Concrete and aggregate weight

Convert concrete or aggregate volume to weight using the density of your material.

Enter your measurements

Example values are prefilled. Replace them with your measurements before using the estimate. JavaScript is required to calculate.

ft³

Use a volume measured at the same moisture and compaction level as the density.

lb/ft³

Use the measured or documented density for this material, moisture level, and compaction level. Enter a value greater than zero.

How it is calculated

Mass (lb) = volume (ft³) × matching bulk density (lb/ft³); US short tons = lb / 2000.

Keep the full result when using it in another calculation. Results show up to three decimal places; very small positive results use scientific notation (for example, 1e-6). No extra material for waste is added.

Match the density to the material volume

Use a volume and density that describe the same material in the same condition. Moisture and compaction affect bulk density, so a density measured for loose aggregate should not be paired with a compacted volume unless the values are known to match that state.

Enter density in pounds per cubic foot. The calculator multiplies that value by cubic feet and converts the resulting pounds to US short tons using 2,000 lb per short ton.

Interpret the calculated weight

For 100 ft³ at an entered density of 120 lb/ft³, the estimated weight is 100 × 120 = 12,000 lb, or 6 US short tons. The 120 lb/ft³ value is illustrative; it is not a default for concrete, sand, gravel, or another material.

This calculation does not measure a truckload or reconcile a delivered batch. Use measured or documented values that apply to the material and condition you are estimating.

Before you use the result

  • Volume and density must describe the same material at the same moisture and compaction level.
  • The calculator does not adjust moisture or compaction, or check the yield of a delivered batch. Do not substitute fresh-concrete density for hardened-concrete density without confirming that it applies.
Slab & rectangular volume

Estimate the concrete for a rectangular slab, wall, footing, or column using its length, width, and thickness.

Concrete bag count

Calculate how many bags of concrete mix you need using your required volume and the mixed yield per bag.

Concrete recipe quantities

Calculate ingredient weights for a larger or smaller batch using an existing recipe and its finished concrete yield.