Whether you’re planning a new flower bed or laying a winding path through your garden, getting the measurements right is key. Our easy to use area and volume calculators take the guesswork out of the equation, helping you work out exactly how much material you’ll need. No more rough estimates – just quick, accurate results to get your project off to a flying start.
Topsoil Volume Calculator
Enter the Width, Length and Depth of the area you're covering, then click 'Calculate Volume'. The depth of Topsoil you require will depend on the type of soil you have and the planting you're doing – for most gardens a Topsoil depth of between 152–711 mm (6–18 in) is recommended.Woodchip, Bark & Mulch Volume Calculator
The key to effective mulching is finding the right balance – not too thick, but not too thin either. A properly applied layer will enrich the soil, but if it’s spread too thinly, it might not provide the full benefits, like weed control or protection from heat and erosion. Generally a 25 mm–102 mm (2–4 in) depth is recommended.Gravel Volume Calculator
Enter the Width, Length and Depth of the area you're covering, then click 'Calculate Volume'. Depending on your project, we recommend a depth of 50mm (2") coverage with all gravel, decorative aggregates, chippings, slates and pebbles.Sand Volume Calculator
Paving Coverage Calculator
Need more or less than a full pack? Calculate your exact requirement here. Select a slab size (or enter a custom size in mm), plus the quantity: