Crushed Stone Guide
Crushed Stone Calculator
Estimate crushed stone volume, cubic yards, tons, waste allowance, and material cost for driveways, patios, drainage, landscaping, and compacted base layers.
Use the Gravel Calculator for crushed stone
Numeravo uses one upgraded gravel and stone calculator instead of separate duplicate calculators. To estimate crushed stone, open the Gravel Calculator and select the Crushed Stone material preset. The calculator will estimate volume, cubic yards, tons, waste-adjusted quantity, and material cost.
Recommended workflow
Open calculator
Go to the Gravel Calculator.
Select material
Choose Crushed Stone.
Enter dimensions
Add length, width, and depth.
Review results
Check yards, tons, and cost.
How to estimate crushed stone
Crushed stone estimates start with the project area and depth. Once the volume is calculated, convert to cubic yards and then estimate tons using the material density.
Volume
Length × Width × Depth = Cubic Feet
Cubic yards
Cubic Feet ÷ 27
Estimated tons
Cubic Yards × Tons Per Cubic Yard
With waste
Estimated Tons × Waste Multiplier
Material cost
Final Tons × Price Per Ton
Common inputs
Example crushed stone estimate
For a 30 foot by 12 foot area with 4 inches of crushed stone, the volume is about 120 cubic feet. That equals about 4.44 cubic yards. If crushed stone weighs about 1.4 tons per cubic yard, the project needs about 6.22 tons before waste. With 10% waste, estimate about 6.84 tons.
Project size
30 × 12 ft
Depth
4 in
With waste
6.84 tons
At $50/ton
$342
Common crushed stone uses
Crushed stone is useful when a project needs a stable, angular, compactable material. It is common below slabs, patios, driveways, walkways, drainage systems, and hardscape projects.
- • Driveway base layers
- • Patio and walkway bases
- • Concrete slab base preparation
- • Drainage and French drains
- • Landscape beds and borders
- • Foundation backfill areas
Common crushed stone depths
Crushed stone estimating tips
Convert depth correctly
Four inches equals 0.333 feet. Six inches equals 0.5 feet.
Add waste
Use 5% to 10% waste for uneven ground, spreading loss, and compaction.
Check density
Stone size, moisture, and supplier material can affect tons per cubic yard.
Separate delivery
Delivery, spreading, grading, and compaction may be separate from material cost.
Match stone to use
Drainage, base, decorative, and driveway projects may need different stone sizes.
Compact base layers
Load-bearing areas usually perform better with compacted layers.
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Crushed stone calculator FAQ
How do I calculate crushed stone?
Measure length, width, and depth. Multiply them to get cubic feet, divide by 27 to get cubic yards, then multiply by tons per cubic yard to estimate tons.
Can I use the Gravel Calculator for crushed stone?
Yes. Open the Numeravo Gravel Calculator and select the Crushed Stone preset to estimate cubic yards, tons, waste, and material cost.
How much waste should I add for crushed stone?
A 5% to 10% waste allowance is commonly useful for uneven ground, compaction, spreading loss, and small measurement differences.
Is crushed stone calculated by ton or cubic yard?
Use both. Project volume is usually calculated in cubic yards, but suppliers commonly sell crushed stone by the ton.