Unit Name Gravel, dry 1/4 to 2 inch 1 unit = x Gravel, dry 1/4 to 2 inch
aluminum 0.6356413 1.5732143
copper 0.1886369 5.3011905
gold 0.0870466 11.4880952
gram/liter 1680 0.0005952
kilogram/liter 1.68 0.5952381
ounce/cubic foot 1677.9864163 0.000596
ounce/cubic inch 0.9711016 1.0297583
silver 0.1598478 6.2559524
water 1.68 0.5952381