The Density of 1B Pea Gravel. For a colored variation expect to add an extra 20 to 50 to those prices. How To Build A Stable Pea Gravel Path Pea Gravel Patio Gravel Landscaping Backyard Landscaping Multiply the area and depth of the excavation to obtain its volume in cubic yards. . Our gravel calculator will display this value for you. The general range for a cubic yard of plain pea gravel is about 30 to 35 and a ton will cost about 40 to 45. For example if the area is 9 feet square and the gravel is to be a foot deep multiply 9 by 9 by 1 to get 81. A single cubic yard of pea gravel weighs about 13 short tons How many tons of pea stone are in a cubic yard. Lets say its d 2 yd. I want coverage to a depth of 3 inches with normal pea gravel 96 lbft³ costing 45 per US short ton. Multiply the three and divide the result by 27 to get cubic yardage. Make the calculations and see the changes. For example you will