Guides / Crushed Stone USA
Crushed Stone Calculator USA: Tons, Yards, Depth, and Cost Guide
Reviewed by: Rock Calculator Editorial Team
Last updated: July 20, 2026
Crushed stone estimates in the United States usually start with feet, inches, cubic yards, and short tons. The key is matching the calculator density to the product your local supplier sells.
Use US Units First
Most US crushed stone projects are measured in feet for length and width, inches for depth, cubic yards for volume, and short tons for ordering weight. A calculator result is strongest when each of those units stays clear.
For rectangular projects, calculate cubic feet first: length x width x depth. Convert depth from inches to feet. Divide by 27 for cubic yards. Then multiply cubic yards by tons per cubic yard.
| Crushed Stone Use | Common Material | Planning Note |
|---|---|---|
| Driveway base | Dense grade, road base, or compactable stone | Compaction and drainage affect final depth. |
| Drainage trench | #57 stone or clean angular stone | Void space helps water move through the trench. |
| Paver base | Compacted base plus bedding layer | Calculate base and bedding separately. |
| Walkway surface | Smaller crushed stone or screenings | Edging helps keep the surface in place. |
| Parking pad | Base stone with adequate depth | Heavy loads may need professional base design. |
Density Matters
Crushed stone is not a single material. Limestone, granite, trap rock, recycled aggregate, and mixed road base can have different bulk densities. Moisture and gradation also matter. If a supplier says one cubic yard of their stone weighs a specific number of tons, use that value.
For early planning, crushed stone is often estimated around 1.45 to 1.70 tons per cubic yard, with many calculator defaults near 1.60. Treat that as a planning assumption, not a guarantee.
Example USA Calculation
A 20 ft by 30 ft parking pad at 6 inches deep has 300 cubic feet of volume. That is 11.11 cubic yards. At 1.60 tons per cubic yard, the estimate is 17.78 tons before waste. With 10% extra, the recommended planning order is about 19.56 tons.
How to Use the Crushed Stone Calculator
- Measure length and width in feet.
- Choose depth in inches based on project type.
- Select crushed stone or enter supplier density if available.
- Add waste allowance for uneven grade, edge fill, and spreading loss.
- Compare the result with supplier truckload and delivery minimums.
Do Not Skip Site Conditions
Crushed stone performs differently on firm soil, soft clay, wet ground, slopes, and compacted subbase. For load-bearing work, drainage, engineered fill, or permitted construction, calculator results should be checked against project specifications and local professional guidance.
For a fast estimate, use the Crushed Stone Calculator. For broader rock and gravel shapes, use the main Rock Calculator.
