Working out how much sand to order is simple once you know your area and depth: length × width × depth gives cubic metres, and multiplying by the sand’s bulk density gives tonnes. Use the calculator below for the four sands Australians order most — it adds a 10% allowance for compaction and wastage so you don’t come up short.
Sand Calculator
How much sand do you need? Enter your area below — results in cubic metres & tonnes.
Estimates use typical bulk densities shown above. Actual density varies by supplier and moisture — confirm with your landscape supplier before ordering. How our calculators work
How to use the sand calculator
- Measure your area and enter the length, width and depth in metres (use the Imperial toggle for feet).
- Pick your sand type — each uses its typical Australian bulk density, e.g. paver bedding sand at 1.7 t/m³.
- Leave the 10% extra box ticked to cover compaction and wastage, then hit Calculate for your volume, weight and bag count.
FAQs
How many tonnes are in a cubic metre of sand?
About 1.6 t for brickies sand, 1.7 t for coarse washed and paver bedding sand, and 1.8 t for fill sand.
How deep should sand be under pavers?
30mm of screeded bedding sand over a compacted road base is the Australian standard.
Should I order extra?
Yes — the calculator adds 10% by default to cover compaction, spillage and uneven ground.