THE DEPTH BASIS MATTERS
Separate the finished layer from the delivered material.
01Measure the target
Rectangle: length × width × depth. Circle: π × (diameter ÷ 2)² × depth. Pick whether the depth describes loose material or the finished compacted layer.
For loose depth, the volume multiplier is 1. For a compacted target, enter your supplier’s loose-to-compacted volume multiplier.
02Match stone and density
Clean crushed stone and crusher run with fines are different products. Grade names such as #57 describe grading; the name alone does not establish one universal bulk density.
Use loose delivered bulk density to convert the order volume to weight. Limestone and custom materials have no assumed density here.
03Price the loose order
Loose volume = target volume × supplier multiplier. Order volume = loose volume × (1 + extra % ÷ 100). Weight = order volume × loose bulk density.
Cost = selected order quantity × unit price + delivery. Prices are in USD; tax, spreading, equipment, and unentered fees are excluded.
WORKED EXAMPLE
20 ft × 10 ft, with 4 inches of loose stone
4 in = ⅓ ft. Volume = 20 × 10 × ⅓ = 66.667 ft³, or 2.469 yd³. At the illustrative 1.4 US short tons/yd³, weight is 3.457 short tons. At $50/short ton plus $75 delivery, with no extra allowance, total cost is $247.84.
If the same dimensions instead describe a compacted target and your supplier specifies a multiplier of 1.25, then 10% additional allowance gives 3.395 yd³ and 4.753 short tons, costing $312.65 at those prices. The 1.25 multiplier is an example input, not a recommendation for your stone.
Before ordering crushed stone
What is the difference between #57 stone and crusher run?
#57 is a grading designation. Crusher run and road base generally include smaller particles and fines alongside larger stone. Match the exact product specification to your project rather than substituting one name for another. This calculator estimates quantities, not drainage performance or bearing capacity.
How much does one cubic yard weigh?
Multiply one cubic yard by your supplier’s tons-per-yard value. The initial clean-stone example is 1.4 US short tons/yd³ (2,800 lb/yd³); the crusher-run reference is 1.5. These are planning references, not certified values for every quarry or moisture condition. Enter the actual loose bulk density when available.
What do I enter for a compacted layer?
Choose “Finished compacted depth,” enter the target dimensions, and supply a loose-to-compacted volume multiplier of at least 1. For example, a supplier saying 1.25 loose yards are needed for one finished yard means enter 1.25. Ask the supplier to distinguish volume multiplier from percentage loss.
Is a 20% volume loss the same as adding 20%?
No. If the loss is 20% of the original loose volume, finished volume is loose volume × 0.8, so loose volume = finished volume ÷ 0.8: the multiplier is 1.25. A 20% ordering allowance instead uses 1.20. Confirm which definition your supplier uses.
Do I need both the multiplier and extra material?
Only if they cover separate things. The multiplier handles a supplier-specified loose-to-compacted conversion; extra material covers additional handling or irregular-ground allowance. Do not add the same compaction allowance twice.
Can I leave density blank?
Yes. Volume and price per cubic yard or cubic meter will still calculate. Weight is shown as unknown. Price per US short ton requires density, even if the entered unit price is zero.
Does crushed limestone have a standard weight?
No single value covers every product. Particle grading, voids, moisture and packing affect bulk weight. Selecting limestone clears the reference density so you can enter the product’s supplier value.
Sources and calculation limits
The 1.4 ton/yd³ crushed-stone and 1.5 ton/yd³ crusher-run examples follow the planning factors published by CT Hauling in Alabama. We interpret “ton” as a US short ton for these examples. Confirm both the ton definition and delivered loose density with your own supplier. We do not adopt that site’s combined waste/compaction percentage.
Luck Stone’s technical grading chart illustrates separate aggregate grades. It is a grading reference, not a source of density or a project-design approval. Unit conversions use NIST conversion factors.
Sources reviewed October 9, 2026. The engine keeps full precision internally; quantities display to three decimals and money to cents. No automatic compaction factor, truck payload approval, structural suitability or national price is implied.