### Concrete Calculator - how much concrete do you need in ...

Concrete wall calculation. For example, to calculate the volume in cubic meters for a wall with a height of 2m, width of 20cm and length of 4m, you need to multiply 2 x 0.2 x 4, which equals 1.6 m 3 (cubic meters). It is no different for a concrete footing, where we again have the familiar formula h x w x l .