Sourced 3/4 inch stone weight · tons and cubic yards
Crushed stone calculator
Enter length, width and depth to get crushed stone in cubic yards and US tons. The preset is a published supplier weight of 2,800 lb per cubic yard, and you can replace it with your own quote.
How much gravel you need
Enter your dimensions to see cubic yards, tons and bags
Enter your dimensions to see cubic yards, weight and bags, with every assumption explained.
The short answer
How much crushed stone do I need?
Multiply length × width in feet by depth in inches, then divide by 324 for cubic yards. A 10 × 10 ft patio base at 3 in needs 25 ft³, or 0.93 cubic yards, which is about 1.3 US tons at the LandCare Stone figure of 2,800 lb per cubic yard (1.4 tons per yard). The same 0.93 cubic yards weighs 1.3 tons at a supplier that publishes 2,600 lb, so confirm the weight per yard with the yard you order from.
The calculation
How to calculate crushed stone in four steps
- Measure the area.Length × width in feet gives square feet. Split an L-shape into rectangles and add each as a separate area above.
- Convert the depth.Divide depth in inches by 12. Three inches is 0.25 ft; four inches is 0.333 ft.
- Find the volume.Square feet × depth in feet gives cubic feet. Divide by 27 for cubic yards. Volume does not depend on the material.
- Convert to tons.Multiply cubic yards by the supplier’s pounds per cubic yard and divide by 2,000. At 2,800 lb/yd³ that is 1.4 tons per yard.
Rectangle · US measurements
Length × Width × Depth ÷ 324
Feet × feet × inches → cubic yards
Cubic yards × 2,800 ÷ 2,000
Cubic yards × lb/yd³ → US tons at the reference weight
Read the full calculation method ↗Worked examples
Crushed stone calculator examples
Each example uses the 103.7 lb/ft³ reference, no extra allowance and no compaction adjustment. Open one to load its measurements into the calculator, then change the depth or density to match your product.
| Project | Volume | Weight |
|---|---|---|
| 10 × 10 ft patio base at 3 in | 25 ft³ · 0.93 yd³ | 1.3 US tons |
| 30 × 4 ft path at 2 in | 20 ft³ · 0.74 yd³ | 1.04 US tons |
| 12 × 40 ft driveway layer at 4 in | 160 ft³ · 5.93 yd³ | 8.3 US tons |
Suppliers sell by the ton or by the cubic yard. Ask which unit the quote uses and which weight per yard they bill by; the calculator’s Bag sizes & cost section accepts either.
Bulk quantities
How much does a ton or a cubic yard of crushed stone cover?
One cubic yard is 27 ft³ whatever the material. One US ton of this reference product is 19.29 ft³ (0.71 yd³), so its coverage depends on the published weight.
Coverage by depth
| Depth | One cubic yard covers | One US ton covers |
|---|---|---|
| 2 in | 162 ft² | 115.71 ft² |
| 3 in | 108 ft² | 77.14 ft² |
| 4 in | 81 ft² | 57.86 ft² |
| 6 in | 54 ft² | 38.57 ft² |
Material for 100 square feet
| Depth | Cubic yards | US tons |
|---|---|---|
| 2 in | 0.62 yd³ | 0.86 tons |
| 3 in | 0.93 yd³ | 1.3 tons |
| 4 in | 1.23 yd³ | 1.73 tons |
| 6 in | 1.85 yd³ | 2.59 tons |
Multiply the 100 ft² row by your area ÷ 100. The ton-of-gravel coverage guide explains the arithmetic, and the cubic yards to tons converter compares several published weights side by side.
Why the density matters
Published weights for crushed stone
A size or grade label does not fix a density. These are the published figures behind this page; each names the supplier and product it describes, and none is a specification for another yard’s material.
| Product | Supplier | lb per yd³ | Tons per yd³ | 10 yd³ weighs |
|---|---|---|---|---|
| 3/4 inch Crushed Stone | LandCare Stone | 2,800 | 1.4 | 14 tons |
| 3/4 inch Crushed Limestone | Birch Tree Bark & Stone | 2,600 | 1.3 | 13 tons |
| 3/4 inch crush minus | Lasalle Sand & Gravel | 2,600 | 1.3 | 13 tons |
Enter your own supplier’s figure under Material & allowance to replace the preset. The full gravel density reference records every figure with its source and date.
Crushed stone for paver bases, drainage and driveways
Angular crushed stone locks together under load, which is why it is specified for paver and slab bases, French drains and driveway layers. Those uses are almost always compacted: a 4-inch compacted base needs more than 4 inches of loose material. This calculator reports the loose geometric volume; apply only a supplier-confirmed allowance for compaction.
For a driveway, calculate each layer separately with its own depth and material. The gravel driveway calculator has base and surface examples and a driveway length table, and the driveway cost guide shows dated supplier prices per ton.
Before you order
Frequently asked questions about crushed stone
Every answer states the weight per yard it assumes.
Check our formulas & sources ↗How much crushed stone do I need for 100 square feet?
At 2 inches deep, 100 ft² needs 0.62 cubic yards, about 0.86 US tons at 2,800 lb per cubic yard. At 3 inches it is 0.93 yd³ (1.3 tons) and at 4 inches 1.23 yd³ (1.73 tons). Multiply by your area ÷ 100.
How many tons of crushed stone are in a cubic yard?
It depends on the product. LandCare Stone publishes 2,800 lb per yard for its 3/4 inch crushed stone, which is 1.4 US tons; Birch Tree Bark & Stone lists 2,600 lb (1.3 tons) for 3/4 inch crushed limestone, and Lasalle 2,600 lb for 3/4 inch crush minus. Use the figure your supplier bills by.
How much does a ton of crushed stone cover?
At 2,800 lb per cubic yard, one US ton is 19.29 ft³. It covers about 115.71 ft² at 2 inches, 77.14 ft² at 3 inches or 57.86 ft² at 4 inches, before compaction. A lighter 2,600 lb product covers about 8% more per ton.
Is crushed stone the same as gravel?
Not quite. Crushed stone is quarried rock that has been mechanically crushed, so the pieces are angular and lock together. Gravel in the strict sense is naturally rounded. In practice suppliers use both words loosely, so ask for the product name, size range and whether it contains fines rather than relying on the word.
How deep should crushed stone be?
Enter the depth your project specifies. The 2-, 3- and 4-inch figures on this page show the arithmetic, not a design recommendation. Paver bases, driveway layers and drainage beds each have their own specification and are usually compacted, which changes the loose volume you must order.
Does this crushed stone calculator include compaction?
No. It returns the loose geometric volume and its weight. Crushed stone used as a base is compacted in place, so ask your supplier how much extra loose material their product needs to reach a compacted depth. The crusher run calculator walks through that arithmetic for a base layer.
Can I use this for #57 stone or crusher run?
Yes, by changing the density, but each has its own page with its own published weights: the #57 gravel calculator and the crusher run calculator. Both share this calculation engine.
How is the driveway example calculated?
A 12 × 40 ft at 4 in layer is 12 × 40 = 480 ft². 480 × (4 ÷ 12) = 160 ft³, or 5.93 cubic yards. Multiplying by 2,800 lb and dividing by 2,000 gives 8.3 US tons before any extra allowance.
References
- 3/4 inch Crushed Stone: 2,800 lb per cubic yard, LandCare Stone. Recorded September 23, 2026
- 3/4 inch Crushed Limestone: 2,600 lb per cubic yard, Birch Tree Bark & Stone. Recorded September 23, 2026
- 3/4 inch crush minus: 2,600 lb per cubic yard, Lasalle Sand & Gravel. Recorded September 16, 2026
About these calculations
By Site Measure · Last updated . The 2,800 lb per cubic yard reference is LandCare Stone’s published weight for its own 3/4 inch crushed stone. The examples are illustrative arithmetic, not measured deliveries, product specifications or installation depths. Content was prepared with AI assistance and checked against the calculator’s arithmetic tests; no independent engineering review is claimed.
See our calculation checks or report a calculation discrepancy with your dimensions, density and units.