"4 inches" is a length. "7676 square feet" is an area. "4 inches by 7676 square feet"
describes a volume, which is equal to 2,558.67 cubic feet. (= 7676/3, because 4 in = 1/3 ft.) So your question is better put as "How many tons of crushed stone does it take to cover an area of 7676 square feet to a depth of 4 inches?"
The answer depends on the density of the crushed stone. I can't answer that, but I've given your question a clearer phrasing.
25 Yards
221.67 (2dp)
36
64 cuft, about 2 and a third cubic yards
To calculate the number of 18-inch patio stones needed for an 8'x8' area, first convert the dimensions to inches: 8 feet equals 96 inches. The area of the square is 96 inches x 96 inches = 9,216 square inches. Each 18-inch stone covers 18 inches x 18 inches = 324 square inches. Dividing the total area by the area of one stone gives you 9,216 ÷ 324 ≈ 28.5, so you would need 29 patio stones to cover the area.
25 Yards
221.67 (2dp)
36
However much you want. By suitably varying the thickness, you could, in theory cover the surface of the earth or even a larger area.The 'square feet' of area that it covers is 324/(depth in inches)
A yard equals out to 3 feet, or 36 inches.
64 cuft, about 2 and a third cubic yards
The density of 13mm crushed stone can vary depending on the type of stone and the compaction of the material. On average, 13mm crushed stone typically has a density of around 1.5 - 2.0 g/cm3.
Crushed stones are typically referred to as crushed stone or crushed rock. These crushed fragments are commonly used in construction and landscaping for a variety of purposes such as making concrete, paving driveways, and drainage applications.
Not sure what 2b is but crushed concrete with 1 1/2" rock will cover about 60 square feet. 15 tons ends up being around 12 cubic yards.
1 yard of 1" crushed stone
To determine how many slabs of stone you need, first convert the area from square feet to square inches. Since 1 square foot equals 144 square inches, 133 square feet is 133 x 144 = 19,152 square inches. Then, divide the total area by the area of one slab: 19,152 ÷ 40 = 478.8. Therefore, you would need 479 slabs of stone to cover 133 square feet, rounding up to the nearest whole slab.
pebbles, talus, scree, crushed stone, or crushed rock