Free gravel calculator estimates gravel volume in cubic meters and weight in tonnes for driveways, paths and gardens. Enter area, depth and material type.
Whether you are laying a driveway, a garden path or a patio base, the question is always the same: how much gravel do I order? Suppliers price in cubic meters, tonnes or truckloads depending on region, so it pays to know the volume and weight before calling. This calculator turns your area and depth into both figures so you can order confidently.
Choose the area shape, enter the dimensions and depth, then pick the material - common graded aggregates such as #57 and #67 crushed stone are listed with their typical densities. The calculator applies the material's compaction allowance so the order volume covers settlement, and also reports 50 lb bags and truck loads so you can order however your supplier sells.
A cubic yard of crushed stone typically weighs about 1.5 tons (roughly 1,780 kg per m³), while pea gravel is closer to 1.4 tons and sand around 1.3-1.6 tons depending on moisture. The calculator uses typical densities; confirm the exact figure with your supplier since it changes the total weight.
Yes. Loose gravel settles and compacts by roughly 10-15%, so order about 10-15% more than the calculated volume for base layers. For surface dressing, the measured depth is usually sufficient.
A typical garden path needs about 5 cm (2 in), a driveway base 10-15 cm (4-6 in), and a drainage layer can be deeper. The calculator takes your chosen depth directly; for multi-layer builds, add the layers separately.