Free US quantity worksheet
Gravel Calculator for Volume and Supplier-Based Weight
Calculate volume from a rectangular or circular area, entered depth and chosen allowance. Add the supplier bulk density only when known to estimate pounds and US short tons. Without density, the worksheet provides volume and leaves weight uncalculated.
Starting figures illustrate the calculation. Replace them with verified measurements and the actual product details. Allowances are your choice, not a recommended rate.
Your quantity result
- Geometric volume before allowance (cu ft)
- 25
- Volume with allowance (cu ft)
- 27.5
- Volume with allowance (cu yd)
- 1.019
- Weight at entered supplier density (lb)
- Enter supplier density to calculate weight.
- Weight at entered density (US short tons)
- Enter supplier density to calculate weight.
Volume uses the entered depth, with no automatic compaction or moisture factor. Weight needs supplier bulk density for the actual material/state. A US short ton is 2,000 lb. No truckload, layer depth, drainage or structural suitability is specified.
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Volume and weight need different inputs
Rectangle volume in cubic feet = length in feet × width in feet × depth in inches / 12. Circle volume = π × (diameter in feet / 2)² × depth in inches / 12. Apply the allowance once; divide cubic feet by 27 for cubic yards.
Weight in pounds = volume with allowance × supplied bulk density in lb per cu ft. Divide pounds by 2,000 for US short tons. This is different from a metric tonne or long ton.
For a 10 ft by 10 ft area at an entered 3-inch depth, geometric volume is 25 cu ft. A chosen 10% extra allowance gives 27.5 cu ft, about 1.019 cu yd. At a purely illustrative entered density of 100 lb per cu ft, that would be 2,750 lb or 1.375 US short tons; 100 is not a recommended material density.
Confirm the material and state with the supplier
Use bulk density for the actual aggregate and relevant delivered or compacted state. Do not use solid-stone density as if it were the bulk density of a load with voids. Moisture, grading and placement can change the relationship.
The calculation includes no automatic compaction factor, installation depth recommendation or truck capacity. It does not specify drainage, structural suitability or vehicle access. Confirm the order quantity, material and handling plan for the actual work.