Gravel, Sand & Soil Calculator

Work out how much substrate you need to cover the bottom of your aquarium at the depth you want.

Substrate Calculator

Enter your tank footprint and desired substrate depth. Choose gravel, sand or soil and we’ll estimate the litres and weight needed.

cm
cm
Quick select:

Choose an approximate grain size. This does not change the volume, but helps pick the right product.

These examples show how shallow, medium and deep layers of gravel, sand and soil might look from the side.