For a standard 4-inch thick slab, this area needs at least 3.95 cubic yards.
14.8 cubic yards will work but round to 15 to be sure.
To my knowledge, concrete is measured in cubic yards. you would convert your measurements to yards 2000 sq ft is about 222.22 sq yards 4 inches is about 0.11 yards multiply to get volume, about 24.7 cu yards
A 9x9 foot slab 4 inches thick requires a minimum of 1 cubic yard. If you go to 6 inches thick you will need 1.5 cubic yards.
Probably none because a slab of granite would be measured in cubic feet.
The cross sectional area of a slab can be found by squaring the height of the slab.
A 40x60x6in slab requires 44.44 cubic yards of cement.
3.95 cubic yards of cement are needed for a slab that size.
4.074 cubic yards for every foot the slab is thick.
37.03 yards
1.19 Cubic Yards
about 5 yards if your slab is 4" deep
how many yards of concrete will i need to do a 20 x20 x4 slab
About 24 cubic yards of cement is required for a slab that size.
A 40'x40'x6" slab requires 29.63 cubic yards of cement.
10.67 Cubic Yards
1.85 cubic yards.
9.3 cubic yards of cement is required for this slab.