Free Crushed Stone Calculator

🧮 Step 1: Select Your Crushed Stone Type

🪨

#57 Stone

3/4" to 1" (Most common)

🪨

#1 Stone

2" to 4" (Large)

🪨

#8 Stone

3/8" (Small)

🪨

Stone Dust

Fine crushed stone

📏 Step 2: Enter Your Project Dimensions

Area Shape:

Length:

ft

Width:

ft

Depth:

in

Compaction Factor:

Price per Ton:

$

Calculation Results

Stone Volume: 2.47 cubic yards

With Compaction (10%): 2.72 cubic yards

Stone Weight: 3.40 tons

Estimated Cost: $102.00

Truck Loads (15 ton capacity): 1 truck

📋 Crushed Stone Size Guide

Different crushed stone sizes are used for different applications:

Stone Size	Dimensions	Common Uses
#1 Stone	2" to 4"	Drainage, railroad ballast, erosion control
#3 Stone	1.5" to 2"	Drainage, driveway base, septic systems
#57 Stone	3/4" to 1"	Driveways, walkways, landscaping, concrete mix
#8 Stone	3/8"	Asphalt mix, walkways, decorative landscaping
Stone Dust	Fine particles	Paver base, compactable surface, filler

💡 Pro Tip

For driveways, use a base layer of #3 stone (4" deep), followed by a 2" layer of #57 stone, and topped with stone dust for a smooth, compacted surface.

Recommended Depths for Different Applications

Driveways

Light-duty: 4-6 inches

Heavy-duty: 8-12 inches

Best stone: #57 or #3 as base with #8 or stone dust top layer

Walkways & Paths

Depth: 2-4 inches

Best stone: #8 or #57 with stone dust top layer

Note: Use landscape fabric underneath to prevent weed growth

Drainage Systems

Depth: 6-12 inches

Best stone: #1 or #3 for maximum water flow

Note: Wrap in filter fabric to prevent clogging

Foundation Bases

Depth: 4-6 inches

Best stone: #57 or crusher run

Note: Compact thoroughly before pouring concrete

📝 How to Use This Crushed Stone Calculator

Select your crushed stone type based on your project needs
Choose your preferred unit system (Imperial or Metric)
Select the shape of your project area (rectangular, circular, or triangular)
Enter the dimensions of your project area
Specify the depth of crushed stone needed
Select a compaction factor appropriate for your project
Enter the price per ton of crushed stone in your area
Click "Calculate" to get your results

The calculator will provide the volume of crushed stone needed, estimated weight, cost, and number of truck loads for your project.

⚠️ Important Note

This calculator provides estimates only. For large projects or critical applications, it's recommended to consult with a professional contractor to determine exact requirements.

🔍 Additional Considerations

Compaction Factors

Crushed stone will compact over time, reducing the effective volume:

✓ Light compaction (10%): For decorative applications with minimal traffic
✓ Medium compaction (20%): For walkways and light-duty driveways
✓ Heavy compaction (30%): For heavy-duty driveways and base layers

Delivery Considerations

When ordering crushed stone for delivery:

✓ Most suppliers sell by the ton rather than by volume
✓ Standard dump trucks typically carry 15-20 tons of material
✓ Delivery fees may apply and often depend on distance
✓ Ensure adequate access for delivery trucks (12' wide, 14' height clearance)
✓ Designate a flat, accessible area for the stone to be dumped

Installation Tips

For best results when installing crushed stone:

✓ Remove all vegetation, roots, and topsoil from the area
✓ Grade the area to ensure proper drainage (1-2% slope away from structures)
✓ Install landscape fabric or geotextile to prevent stone from mixing with soil
✓ Spread stone evenly in layers no more than 4" thick
✓ Compact each layer thoroughly before adding the next
✓ Use a plate compactor for best results on larger areas

❓ Frequently Asked Questions

How much does a cubic yard of crushed stone weigh?

A cubic yard of crushed stone typically weighs between 2,400 to 2,900 pounds (1.2 to 1.45 tons), depending on the stone size and moisture content. Smaller crushed stone and stone dust tend to be denser and heavier than larger stones.

How many tons of crushed stone do I need per cubic yard?

You'll need approximately 1.2 to 1.45 tons of crushed stone per cubic yard, depending on the stone size. #57 stone (3/4" to 1") typically requires about 1.35 tons per cubic yard, while stone dust may require up to 1.45 tons per cubic yard.

What's the difference between crushed stone and gravel?

Crushed stone is mechanically broken rock with angular, sharp edges, while gravel consists of naturally weathered and eroded rock fragments with rounded edges. Crushed stone provides better stability and compaction due to its angular shape, making it ideal for driveways and base layers.

How deep should crushed stone be for a driveway?

For a residential driveway, a total depth of 4-6 inches of crushed stone is recommended for light-duty use. For heavy-duty applications or areas with poor soil conditions, 8-12 inches may be necessary. It's best to apply the stone in multiple layers, compacting each layer before adding the next.

Do I need landscape fabric under crushed stone?

Yes, landscape fabric or geotextile is highly recommended under crushed stone. It prevents the stone from mixing with the soil below, reduces weed growth, and improves drainage. For driveways and high-traffic areas, a commercial-grade geotextile fabric is recommended for better durability.

How much does crushed stone cost per ton?

Crushed stone typically costs between $25 and $50 per ton, depending on the type, quality, and your location. #57 stone (the most common size) usually costs around $30-35 per ton. Delivery fees may add $50-$150 depending on distance and quantity. Purchasing in larger quantities often results in better pricing.

What size crushed stone is best for drainage?

Larger crushed stone sizes like #1 (2-4 inches) or #3 (1.5-2 inches) are best for drainage applications. The larger stones create more void space between particles, allowing water to flow through quickly. For French drains, #57 stone (3/4-1 inch) provides a good balance between drainage capacity and stability.