Crushed Stone Calculator
Calculate the precise volume and weight of crushed stone needed.
2. Material Details
3. Waste & Costs (Optional)
Your Project Estimate
Enter your project's details to generate a complete material estimate.
Your Guide to the Crushed Stone Calculator
A crushed stone calculator is an essential tool for any project requiring a stable, durable base. Unlike smooth gravel, crushed stone consists of angular, fractured pieces that interlock when compacted, creating a superior foundation for driveways, patios, and retaining walls. This calculator helps you determine the exact volume (in cubic yards) and weight (in tons) of crushed stone needed, preventing costly overages or time-wasting shortages.
By inputting your project's dimensions—length, width, and depth—our tool accurately calculates the required material. The most crucial input is depth; a 4-6 inch base is standard for a passenger car driveway, while a simple walkway might only need 2-3 inches. Using this driveway stone calculator ensures you account for the correct base depth, which is vital for the longevity of your project.
Frequently Asked Questions
How many tons of crushed stone do I need for a 2-car driveway?
A typical 2-car driveway (20ft x 24ft) with a standard 4-inch base requires approximately 10-12 tons of crushed stone. Use our calculator with your exact dimensions for a precise estimate.
What is #57 crushed stone?
#57 stone refers to a specific size of crushed stone, typically around 3/4 to 1 inch in diameter. It's one of the most popular choices for driveway bases and drainage applications due to its excellent balance of compaction and water flow.
How does compaction affect my crushed stone calculation?
Crushed stone will compact and settle, reducing its volume. It's critical to add a waste factor of 5-10% in the calculator to account for this. You can see the effect with our compaction calculator. This ensures you have enough material to achieve your final desired depth after compaction.
What's the difference between crushed stone and gravel?
Crushed stone is man-made, with angular, interlocking edges ideal for stable bases. Gravel is naturally rounded by water and is better suited for decorative purposes like walkways, as it doesn't compact as well.
How much does a cubic yard of crushed stone weigh?
On average, a cubic yard of crushed stone weighs between 1.4 and 1.5 tons (2,800 to 3,000 pounds). Our calculator uses these standard densities to convert your project's volume to the weight you'll need to order.
Can I put crushed stone over dirt?
Yes, but for best results, you should first remove the topsoil, lay down a geotextile fabric to prevent weeds and stabilize the soil, and then add your crushed stone base in compacted layers.