Conversion tables

Weights of materials

Dry sand fine – 1.28 tonnes per cubic metre

Dry sand course – 1.60 tonnes per cubic metre

Topsoil (some moisture) – 1.44 tonnes per cubic metre

Ballast – 1.76 tonnes per cubic metre

Gravel (MOT Type 1) – 1.92 tonnes per cubic metre

Shingle – 1.62 tonnes per cubic metre

Stiff clay – 1.60 tonnes per cubic metre