Crushed Stone Calculator
Calculate quantity and weight of crushed stone, gravel, and aggregate for your construction project
Shape and Dimensions
Length of the area to be filled
Width of the area to be filled
Typical depth: 2-4 inches for walkways, 4-6 inches for driveways
Additional material to account for compaction and waste (standard: 10%)
Required Crushed Stone
Formula: (0.0 × 0.0 × 0.000) ÷ 27 = 0.000 yd³
With 10% waste: 0.000 + (0.000 × 0.1) = 0.000 yd³
Weight: 0.000 yd³ × 1.5 tons/yd³ = 0.00 tons
Cost Estimation (Optional)
Example Calculation
Patio Project Example
Dimensions: 15′ × 11′ × 2″ deep (rectangular)
Area: 15 × 11 = 165 ft²
Depth conversion: 2″ = 0.167 feet
Volume: 15 × 11 × 0.167 = 27.555 ft³
Calculations
Base volume: 27.555 ft³ ÷ 27 = 1.02 yd³
With 10% waste: 1.02 + (1.02 × 0.1) = 1.12 yd³
Weight: 1.12 yd³ × 1.5 tons/yd³ = 1.68 tons
Total needed: 1.12 cubic yards (1.68 tons)
Cost Example
Price: $35 per cubic yard
Total cost: 1.12 yd³ × $35 = $39.20
Note: Delivery and labor costs not included
Crushed Stone Sizes
Stone Dust
Concrete blocks, patching, smooth pavements
Up to 1/4″
Walkways, tennis courts, ground fillers
Up to 1/2″
Asphalt mix, roads, filtration, landscaping
Up to 3/4″
Driveways, drainage, slab bases, french drains
Up to 1″+
Pavements, road bases, heavy-duty applications
Common Rock Types
Application Guide
Compact base layer before adding stone
Use landscape fabric to prevent weed growth
Choose size based on intended use
Add 10% extra for waste and compaction
Ensure proper drainage slope
Compact in layers for thick applications
Understanding Crushed Stone Calculations
What is Crushed Stone?
Crushed stone is a construction aggregate made by crushing quarried rock into various sizes. It's used for drainage, base material, concrete aggregate, and landscaping. Different sizes serve different purposes in construction projects.
Why Accurate Calculation Matters
- •Prevents material shortage or costly excess
- •Ensures proper structural support and drainage
- •Helps budget accurately for delivery costs
- •Optimizes project timeline and efficiency
Calculation Formulas
Rectangular: (L × W × D) ÷ 27
Circular: (π × r² × D) ÷ 27
With Waste: Volume × (1 + Waste%)
- Standard Weight: 1.5 tons per cubic yard
- Waste Factor: 10% standard (5-15% range)
- Coverage: 1 yd³ covers ~100 ft² at 3″ depth
- Typical Cost: $25-50 per cubic yard
Note: Actual weight varies by rock type. Limestone: ~1.5 tons/yd³, Granite: ~1.6 tons/yd³. Always verify with your supplier.