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Turn length, width and depth into cubic yards and tons of gravel, crushed stone, pea gravel, river rock or road base — plus driveways, paver base, French drains, sand and delivery loads.
With these inputs:
| Result | Value |
|---|---|
| Gravel needed | 3.26 yd³ |
| Weight | 4.89 tons |
| Area covered | 240 sq ft |
| Estimated material cost | $108 – $196 |
| Material | Crusher Run / #411 (base) |
| Area | 240 sq ft |
| Depth | 4 in |
| Volume before waste | 2.96 yd³ |
| Waste allowance (10%) | 0.3 yd³ |
| Total volume | 3.26 yd³ |
| Weight | 4.89 tons (9,778 lb) |
| Cubic feet | 88 ft³ |
| Metric | 2.49 m³ · 4.44 tonnes |
| 0.5 cu ft bags (≈50 lb, if buying retail) | 176 bags |
| Density used | 1.5 tons per yd³ (111 lb per ft³) |
| National average price | $108 – $196 ($22–$40/ton) |
At this volume bulk delivery is far cheaper than bagged stone — most suppliers deliver by the ton with a flat haul fee.
This is the calculator most people are looking for. Enter the length, width, and depth of the area you are covering, pick your stone, and you get the volume in cubic yards, the weight in tons, the number of bags if you are buying retail, and an estimated delivered price. Every other calculator on this site is a specialised version of this one.
At a standard 4-inch depth, a 20 ft × 12 ft area needs about 2.96 cubic yards of gravel before waste, or roughly 3.3 cubic yards with a 10% allowance — about 4.9 tons of crusher run.
It depends on the stone. Crusher run runs about 1.5 tons per cubic yard, #57 stone about 1.4, and rounded pea gravel about 1.35. So one ton is roughly 0.67 to 0.74 cubic yards.
Yes. Gravel compacts as it is driven on and settles into the subgrade. A 10% allowance is standard, and 15% is sensible over soft or wet ground.
Bulk is dramatically cheaper above about half a cubic yard. Bagged stone can cost four to six times as much per cubic yard once you account for the volume in a 50 lb bag.
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