To calculate how much topsoil you will need for your project simply:
1.) Choose your unit of measurement, from here you can select from metres, feet or yards.
2.) Enter the dimensions of the ground you will be working with.
3.) Set a unit of depth, you can select between cm or inches.
4.) Enter your desired depth.
5.) Select ‘calculate’ and you will see the volume of the area along with the calculation of tonnes required.