Calculate Crusher Run Quantity and Cost
Enter your project dimensions, choose unit system, then add density and pricing for a complete estimate.
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Crusher Run Gravel Calculator
Estimate how much crusher run you need for driveways, patios, paths, and base layers. This calculator converts dimensions into cubic yards, cubic meters, and tons, then applies waste allowance and project cost.
What Is Crusher Run Gravel?
Crusher run gravel is a blended aggregate made from crushed stone and fine particles (stone dust). Because it contains both larger angular pieces and fines, it compacts tightly into a stable base layer. This makes crusher run a popular choice for driveway foundations, walkway bases, shed pads, patio sub-bases, and general hardscape preparation.
Compared with clean stone, crusher run locks together more effectively under compaction. The fines fill the gaps between larger pieces, reducing movement and creating a denser final surface. That compacted structure helps resist rutting and washout in many applications when installed at proper depth and with adequate drainage.
How to Calculate Crusher Run
The basic calculation follows three steps: find volume, convert volume to weight, then apply waste/compaction allowance.
| Step | Formula | Example |
|---|---|---|
| 1. Volume (ft³) | Length (ft) × Width (ft) × Depth (ft) | 40 × 12 × (4/12) = 160 ft³ |
| 2. Convert to yd³ | ft³ ÷ 27 | 160 ÷ 27 = 5.93 yd³ |
| 3. Convert to tons | yd³ × Density (tons/yd³) | 5.93 × 1.40 = 8.30 tons |
| 4. Add waste | Tons × (1 + Waste%) | 8.30 × 1.08 = 8.96 tons |
The calculator above performs all of these conversions automatically for both imperial and metric dimensions.
Crusher Run Density Guide
Density affects the final tonnage. A small density change can significantly alter your order. Use your supplier’s value whenever available.
| Material Type | Typical Density (tons/yd³) | Notes |
|---|---|---|
| Crusher run (general range) | 1.35 – 1.50 | Most common estimate range |
| Limestone crusher run | 1.40 – 1.50 | Often compacts very tightly |
| Granite crusher run | 1.35 – 1.45 | Varies by gradation and moisture |
| Recycled aggregate blend | 1.25 – 1.40 | Depends on composition |
Recommended Depth by Application
Depth should reflect load conditions, soil quality, and drainage. Heavy traffic areas need thicker base and proper compaction in lifts.
| Application | Typical Loose Depth | Typical Compacted Depth |
|---|---|---|
| Walkway / garden path | 3 – 4 in | 2.5 – 3.5 in |
| Residential patio base | 4 – 6 in | 3.5 – 5 in |
| Light-duty driveway | 5 – 7 in | 4 – 6 in |
| Heavier driveway / occasional truck use | 7 – 10 in | 6 – 8 in |
Ordering Tips for Crusher Run
When ordering, avoid exact-to-the-decimal purchases. Real projects include uneven subgrade, edge loss, and compaction variation. For most jobs, a 5% to 12% allowance is practical. If your site has curves, steep grades, or unknown subgrade conditions, consider the upper end of that range.
Ask suppliers whether they sell by the ton, cubic yard, or truckload minimum. If truck capacity is fixed, rounding up to full loads can reduce per-ton delivery cost. The calculator displays estimated 15-ton and 20-ton truckload counts to make planning easier.
Compaction Best Practices
Crusher run performs best when installed in controlled layers, typically called lifts. Spread material in lifts of around 3 to 4 inches loose, then compact each layer thoroughly before adding the next. Wet, muddy, or over-saturated base conditions reduce compaction quality. In very dry conditions, a light mist can help fines bind during compaction.
Use a plate compactor for walkways and small pads, and a roller for larger driveway areas where available. Good edge restraint and proper slope are also critical. A slight crown or cross-slope helps drainage and improves long-term performance.
What Affects Crusher Run Cost?
Material cost is only one part of total project cost. Delivery distance, minimum load requirements, fuel surcharges, and placement labor can be significant. If your site is hard to access, smaller trucks or multiple trips may increase cost. Seasonal demand can also shift local pricing.
For a realistic budget, estimate:
- Material (by ton or cubic yard)
- Delivery charges and minimums
- Equipment rental (compactor, skid steer, roller)
- Labor for grading, spreading, and compaction
- Geotextile fabric or drainage improvements when needed
Using both price-per-ton and price-per-yard fields in the calculator allows quick comparison depending on how your local supplier quotes material.
Common Mistakes to Avoid
- Using clean stone where a tightly compacted base is required
- Skipping compaction between lifts
- Ignoring drainage and slope
- Ordering exact quantity with no overage
- Using a generic density instead of supplier-specific data
Crusher Run Gravel Calculator FAQ
How many tons of crusher run are in one cubic yard?
It depends on material density. A common rule is about 1.4 tons per cubic yard, but local products can range from about 1.35 to 1.50 tons/yd³ or more.
Should I order by tons or cubic yards?
If your supplier sells by weight, order by tons. If sold by volume, order by cubic yards. The calculator gives both so you can match your supplier’s method.
How much extra material should I add?
For most projects, 5% to 12% extra is typical for waste, settlement, shape irregularities, and compaction variation.
What depth of crusher run is best for a driveway?
Many residential driveways use around 4 to 6 inches compacted for light use. Poor soils or heavier loads may require thicker base sections.
Can crusher run be used as a final surface?
Yes, in many practical driveway and utility areas. It compacts into a firm surface, though appearance and dust levels vary by material and weather.
This calculator provides planning estimates. Final material quantities should be confirmed against site conditions and supplier specifications.