Concrete Calculators If you’re planning a project that requires a little – or a lot – of concrete, it may be difficult to judge exactly the volume of concrete that you need, especially if you’re not maths-savvy. Our handy concrete calculator has been designed to estimate how much concrete you will need for slabs, footings, and posts. To use our calculator for slabs and footings, select the correct tab and then input the length, width and depth that the finished slab or footing will need to be. If you’re creating posts, select the posts tab and input the depth and radius you require. Make sure to select the correct units using the dropdown functions, ensuring they are consistent across all of your inputs. Once the information has been inputted correctly, click on the ‘Calculate’ button – the result will tell you the volume of concrete you require. If you need any help or advice on how to use our concrete calculator dont hesitate to get in touch with us today by phone or email.