Stop guessing how many loads you need. Enter area and depth to get tons, cubic yards, and truck loads for any aggregate type.
For estimation purposes only. Terms of Use
Different materials compact and weigh differently, so a generic volume estimate isn't enough. Select your aggregate type — road base, drainage rock, sand, gravel, or topsoil — and get a tonnage estimate matched to its typical density. This calculator works out the quantity you need from an area and depth. If you already know your quantity and just need to convert between units, use the Aggregate Conversion Calculator instead.
Densities used: Road Base 1800, Drainage Rock 1600, Sand 1700, Gravel 1650, Topsoil 1200 kg/m³. These are typical loose values — verify with your supplier for a specific product, since moisture and gradation shift the real number.
A driveway 20 m long, 4 m wide, 150 mm of gravel (1650 kg/m³):
Use this to estimate how much gravel, base, sand, or topsoil to order for a driveway, road base, backfill, or drainage layer — and roughly how many truck loads that is.
This is a quantity estimate, not a compaction or conversion tool. For documenting field compaction test results use the Compaction Report tool, and to convert an already-known quantity between units use the Aggregate Conversion Calculator.
Road base, drainage rock, sand, gravel, and topsoil, each with its own density factor.
No — this calculates the material quantity you need from an area and depth. The Aggregate Conversion Calculator converts a known quantity between units.
No — this calculates material quantity; the Compaction Report tool documents field compaction test results.