You need a 3 rd figure to get volume.
There are approximately 224.71 gallons in 30 cubic feet.
There are 4.01 cubic feet in 30 gallons.
The question is ambiguous. Do you mean how many cubic feet are in a sphere with radius of 30 feet?
How many imperial gallons is 30 cubic feet of water?
30 liters are equal to 1.06 (1.05944) cubic feet.
27 cubic feet is about 764.55 liters.
6 inches = 1/2 foot.27 cubic feet = 1 cubic yard60-ft x 30-ft x 1/2 ft = 900 cubic feet = 331/3 cubic yards
To calculate the volume of concrete needed, first convert the dimensions to feet: a 30x30 area is 30 feet by 30 feet, and 4 inches is 1/3 of a foot. The volume in cubic feet is 30 x 30 x (1/3) = 300 cubic feet. To convert cubic feet to cubic yards, divide by 27 (since there are 27 cubic feet in a cubic yard): 300 ÷ 27 ≈ 11.11 cubic yards. Therefore, you need approximately 11.11 yards of concrete.
You will need about 30 cubic feet. Your bag should also tell you how many cubic feet are in it.
10,800 cubic feet
30 x 33 x 66 = 65,340 (cubic feet).
9.27 cubic feet