What is Gravel Calculator?
Calculates both volume (cubic yards) and weight (tons) of gravel, crushed rock, or aggregate required for landscape and driveway construction.
How to Use This Calculator
- Enter project length and width in feet.
- Enter desired gravel depth in inches.
- Select material density.
- Read tons and cubic yards needed.
The Mathematical Formula & Variables
Cubic Yards = [Length * Width * (Depth / 12)] / 27; Tons = Cubic Yards * Density (tons/yd³)
Step-by-Step Worked Example
Scenario: Driveway area 30 ft x 18 ft at 3 inches deep using standard crushed gravel (1.4 tons/yd³).
- Area = 30 * 18 = 540 sq ft.
- Volume = 540 * (3 / 12) = 135 cu ft = 5.00 cubic yards.
- Tons = 5.00 cu yds * 1.4 tons/yd³ = 7.00 tons.
Result: 7.00 Tons (5.00 Cubic Yards)
Frequently Asked Questions
How many square feet does 1 ton of gravel cover?
One ton of gravel covers approximately 100 square feet at 2 inches depth, or 70 square feet at 3 inches depth.