A slab of concrete that is 8 feet by 8 feet by 16 feet , or 1024 cubic feet, weighs 136,192 pounds of 61,762.44 kilograms if it is pre-mixed. Calculator.net provides a concrete-volume calculating tool.
Different types of concrete can have different densities, according to Calculator.net. The calculator uses a density of 2130 kilograms per cubic meter, or 133 pounds per cubic feet, in order to calculate the mass of cement slabs. In addition to square or rectangular concrete slabs, the concrete calculator can also determine the mass of columns or other round pieces of concrete if given the diameter and height or depth.