Use the metric system, it's more practical.
Just do width * height * lenght of the area. This will get you something in CM^3.
Then just do / 100^3 and you have M^3, the bags of concrete you buy will say how much M^3 you can pour with it.
12 x 12 feet, 4 inches deep: 1.8 cubic yards, minimum.
100 sqft x (4/12) 33.33 cubic ft. Of concrete.
To calculate the amount of concrete needed for a 12x12x4 slab, first convert the dimensions to feet: 12 feet by 12 feet by 4 inches (which is 1/3 foot). The volume in cubic feet is 12 x 12 x (1/3) = 48 cubic feet. Since concrete is typically sold by the cubic yard, divide the volume by 27 (since there are 27 cubic feet in a cubic yard): 48 ÷ 27 ≈ 1.78 cubic yards of concrete is required.
1.78 cu. yds.
To determine how many bags of concrete you need for a 10 x 10 slab, first calculate the volume: a 4-inch thick slab is 10 x 10 x (4/12) = 33.3 cubic feet. A typical 80-pound bag of concrete covers about 0.6 cubic feet. Dividing 33.3 by 0.6 means you would need approximately 56 bags of concrete for that size slab.
about how much to pour a concrete slaba 12 x 14'
The recommended depth for the footer when constructing a concrete slab is typically around 12 inches.
12 x 12 feet, 4 inches deep: 1.8 cubic yards, minimum.
100 sqft x (4/12) 33.33 cubic ft. Of concrete.
To calculate the amount of concrete needed for a 12x12x4 slab, first convert the dimensions to feet: 12 feet by 12 feet by 4 inches (which is 1/3 foot). The volume in cubic feet is 12 x 12 x (1/3) = 48 cubic feet. Since concrete is typically sold by the cubic yard, divide the volume by 27 (since there are 27 cubic feet in a cubic yard): 48 ÷ 27 ≈ 1.78 cubic yards of concrete is required.
1.78 cu. yds.
12-ft x 12-ft x 2-in = 24 cubic feet = 8/9 of 1 cubic yard
129
12 ft x 10 ft x .333 ft (4 in) = 39.96 cu ft. You need enough concrete for 40 cubic ft.
12 ft x 10 ft x .333 ft (4 in) = 39.96 cu ft. You need enough concrete for 40 cubic ft.
A cubic foot of concrete weighs ABOUT 150 pounds. 4 feet by 12 feet by 4 feet is 192 cubic feet. If you meant 4 feet by 12 feet by 4 INCHES, that would be 16 cubic feet.
(3.5/12) x 120 = (.2917) x 120 = 35.004 Cubic Feet Concrete is sold by the cubic yard. 35.004 cubic feet = 1.3 cubic yards