Calculate how much gravel you need for your driveway or project. Free online gravel calculator with volume, weight, and cost estimation.
The gravel calculator estimates how much gravel you need for driveways, pathways, and landscaping. Enter the area dimensions and desired depth to get the volume and weight. Gravel typically weighs about 2,800 lbs per cubic yard.
Volume (cu ft) = Length × Width × (Depth / 12) | Weight = Volume (cu yd) × 2,800 lbsDepth is converted from inches to feet. A cubic yard of gravel weighs approximately 2,800 lbs (1.4 tons). The actual weight varies based on gravel type: pea gravel ~2,600 lbs/cu yd, crushed stone ~2,800 lbs/cu yd, and river rock ~2,500 lbs/cu yd.
| Input | Output |
|---|---|
| 20×10 ft driveway, 4" deep | 2.47 cu yd, 6,907 lbs, 3.45 tons |
| 50×3 ft path, 2" deep | 0.93 cu yd, 2,593 lbs, 1.30 tons |
| 15×15 ft patio base, 6" deep | 4.17 cu yd, 11,667 lbs, 5.83 tons |