Gravel Calculator
Calculate gravel volume in cubic yards, weight in tons, and 0.5 cu ft bag counts for driveways, patios, and walkways.
- 3.80 tons of crushed stone gravel (1.4 tons/yd³)
- 2.72 cubic yards total volume (73.33 cu ft / 2.08 m³)
Standard Project Worked Example (No JavaScript Required)
Baseline Scenario: 10×20 ft driveway, 4 in deep (0% waste): 66.67 ft³, 2.47 yd³, 3.46 tons crushed stone (1.4 tons/yd³).
Our online calculator updates dynamically in real-time as you type your project measurements. If JavaScript is disabled, use the formula reference below.
How This is Calculated
Volume (cu ft) = Length (ft) × Width (ft) × (Depth (in) / 12). Cubic Yards = Volume / 27. Total Tons = Cubic Yards × Material Density Factor (Crushed Stone = 1.4 tons/yd³, Pea Gravel = 1.5 tons/yd³, River Rock = 1.35 tons/yd³).
Sourced Reference Constants
- All material yields and bag volumes are derived from official manufacturer technical data sheets.
- Buy quantities are strictly rounded UP to full purchasable units (bags, boxes, sheets, gallons, pavers).
- Waste allowances are user-adjustable to fit complex room alcoves, diagonal patterns, or soil conditions.
Frequently Asked Questions
How many tons of gravel are in a cubic yard?
Crushed stone gravel weighs approximately 1.4 tons (2,800 lbs) per cubic yard, depending on moisture content and stone size.
How deep should a gravel driveway be?
A standard residential gravel driveway requires a compacted gravel surface layer of 4 inches over a stable sub-base.
How many square feet does a ton of gravel cover?
One ton of crushed gravel covers approximately 55 to 60 square feet at 3 inches depth, or about 40 to 45 square feet at 4 inches depth.