Dimensions
Measure the driveway
Layer 1
Compacted sub-base
Layer 2
Driveway Gravel Calculator
Calculate a compacted sub-base and a separate surface layer, then turn the total into tons, truckloads and a supplier-ready summary.
How it works
Calculate each driveway layer separately
For each layer: cubic yards = length × width × depth in feet ÷ 27, then multiply by 1 + allowance. Tons = cubic yards × density ÷ 2,000.
A 50 × 12 ft driveway at 6 inches of compacted base and 2 inches of surface gravel needs two different quantities and often two different products. Keeping them separate makes the delivery request clearer.
How this calculator was prepared
This driveway estimate calculates sub-base and surface layers independently from finished area and installed depth, then applies the allowance and density entered for each layer. Truckloads are rounded up from total tons.
Sources and limitations
Material density, moisture, compaction, subgrade conditions, supplier rounding, and delivery minimums vary. Confirm the final quantity and specification with your supplier or contractor.