Gravel Calculator
Estimate gravel, crushed stone, river rock, and dense grade aggregate quantities in US tons, cubic yards, and bags with custom compaction factors.
Area to Cover
Depth of Gravel
Gravel Density & Optional Pricing
Required Gravel Material
Estimated weight, volume, and cost for coverage area
2.50 US Tons
1.85 yd³
Volume (Cubic Feet) 50.0 cu ft
Volume (Cubic Meters) 1.42 m³
Weight in Pounds 4,994 lbs
Weight (Metric) 2.27 tonnes
Estimated Cost $83.25
Based on selected unit Aggregate Volume & Tonnage Formulas
Aggregate volume is calculated from geometric surface area and compacted depth. Bulk density varies by stone composition and gradation, ranging from 1.2 tons/yd³ for river rock to 1.62 tons/yd³ for compacted dense grade stone dust base.
Formula:
Volume (yd³) = [Area (sq ft) × (Depth in / 12)] / 27 | Weight (Tons) = Volume (yd³) × Bulk Density (Tons/yd³) Variables & Parameters
Volume (yd³) Area (sq ft) × (Depth in inches / 12) / 27
Total Tons Volume (yd³) × Density (Tons / yd³) × (1 + Compaction %)
Bags (50 lb) Total Weight in lbs / 50 lbs
Truckloads Total Tons / 12 (standard tri-axle dump truck)
Frequently Asked Questions
How do I calculate how much gravel I need?
To calculate gravel requirements: (1) Measure project area in square feet (Length × Width). (2) Measure required depth in inches and divide by 12 to convert to feet. (3) Calculate volume in cubic yards: Cubic Yards = (Square Feet × Depth in inches) / 324. (4) Convert to US tons by multiplying cubic yards by aggregate material density (typically 1.4 tons/yd³ for pea gravel, 1.5 tons/yd³ for crushed stone). (5) Add a 10% to 15% waste and compaction buffer.
How do you calculate gravel yards and tons for a driveway or patio?
Using a gravel calculator for driveway, calculate square feet by multiplying Length (ft) × Width (ft). For volume in a gravel calculator yards, calculate Cubic Yards = (Square Feet × Depth in inches) / 324. To calculate in a gravel calculator tons or crushed gravel calculator, multiply cubic yards by aggregate density (typically 1.4 tons/yd³ for pea gravel calculator and 1.5 tons/yd³ for crushed stone).
How much does 1 cubic yard of gravel weigh?
Standard crushed stone (#57) weighs approximately 1.4 to 1.5 US tons (2,800 to 3,000 lbs) per cubic yard. Pea gravel weighs about 1.35 to 1.4 tons, while dense base material (Item 4) weighs around 1.6 tons per cubic yard.
Why should I add a compaction waste factor?
When gravel or crushed aggregate is compacted with a plate compactor or heavy rollers, its volume decreases by 5% to 15%. Adding a 10% waste buffer ensures you do not run short during installation.