Instant answers. Results update as you type, with a visual breakdown.
Share or print. Copy a link with your numbers, or print a clean summary.
Sourced and private. ENERGY STAR sizing · manufacturer bag yields. Nothing you enter leaves your device.
Depth
Cu yd
Tons (≈1.4 t/yd³)
2″
4.94
6.91
3″
7.41
10.37
4″
9.88
13.83
6″
14.81
20.74
8″
19.75
27.65
Worked example
20 × 40 = 800 sq ft; × 4 in ÷ 12 = 266.7 cu ft; ÷ 27 = 9.88 yd³ ≈ 13.83 tons. Density varies by stone type and moisture, so confirm with your supplier.