## Gravel Calculator | How much gravel do you need? - Omni

Step one is establishing the volume of gravel needed. It is equal to the volume of an excavation, and you can do it in the following way: Determine the length and width of a cuboidal excavation. In our example the excavation length is l = 6 yd and the width is b = 3 yd. Calculate the area of the excavation, multiplying the length and width ...