Stone Calculator
Enter area dimensions to calculate stone needed in cubic yards and tons.
Stone Calculator Formula
Measure the area, enter length, width, and depth, and the calculator converts to cubic yards and estimated tons based on stone density.
Understanding Stone Quantities
Stone Types for Construction and Landscaping
| Stone Type | Size Range | Weight per CY | Application |
|---|---|---|---|
| Crushed Stone #57 | 3/4 - 1 in | 2,800 lbs | Driveways, drainage |
| Crushed Stone #67 | 3/4 in | 2,700 lbs | Backfill, pipe bedding |
| Crusher Run (ABC) | Dust - 1.5 in | 3,100 lbs | Base material |
| Rip Rap | 6 - 24 in | 2,600 lbs | Shoreline protection |
| Flagstone | 1 - 3 in thick | 3,200 lbs | Patios, walkways |
How to Estimate Stone for a Driveway
A gravel driveway requires three layers for proper construction:
- Sub-base (4-6 inches): Large crushed stone for drainage and stability.
- Base layer (4-6 inches): Crusher run that compacts into a solid surface.
- Surface layer (2-3 inches): Crushed stone #57 or decorative gravel.
For a 12-foot wide, 50-foot long driveway with 10-inch total depth: 600 sq ft x 0.833 ft / 27 = 18.5 cubic yards. At 1.4 tons per cubic yard, that equals approximately 26 tons.
Stone Delivery and Placement
Stone is delivered by dump truck. A standard tandem-axle truck carries 10-14 tons (7-10 cubic yards). For large projects, order by the truckload to reduce per-ton delivery costs.
Stone Calculator FAQ
Measure area in square feet, multiply by depth in feet, divide by 27 for cubic yards. For 500 sq ft at 4 inches: 500 x 0.333 / 27 = 6.17 cubic yards. Add 10% for waste.
Crushed stone weighs 2,600-3,100 lbs per cubic yard. Standard #57 stone is about 2,800 lbs. Crusher run is heavier at 3,100 lbs due to fine particles filling voids.
Crusher run (ABC stone) is the best base material. #57 crushed stone is the most popular surface layer. Build driveways in three layers for proper construction.
A properly constructed stone driveway should be 8-12 inches deep total: 4-6 inches sub-base, 4 inches crusher run, and 2-3 inches surface stone.
Crusher run is a blend of crushed stone from dust-size to 1.5-inch pieces. The mix compacts into a dense, stable surface. It is the standard base material for driveways and building pads.
A tandem-axle dump truck carries 10-14 tons (7-10 cubic yards). A single-axle carries 5-7 tons. Tri-axle trucks handle 15-20 tons.