Wood Chip Calculator
How many bags of wood chip do I need?
Wood chip surfaces paths and borders and is sold loose or bagged. Enter the length and width of the area and how deep you want the layer, and the calculator gives the volume in litres and the number of bags, based on your bag size. A depth of around 50 mm is typical for wood chip.
Bagged products vary between 70 litre bags and larger bulk bags, so set the bag size to whatever your supplier sells. As with any loose material, round up: it settles once walked on or watered in.
Frequently asked questions
Is the wood chip calculator free?
Yes. It is completely free, with no sign-up and nothing to install. It runs entirely in your browser.
How accurate is it?
It gives a reliable estimate for ordering based on standard UK figures, but real quantities vary with ground conditions, wastage and how materials settle. Always add a margin and confirm with your supplier before buying.