Gram: 210 x 0.0001 / 42 x 0.00001(g) mg: 210000 x 0.1 / 42000 x 0.01(mg) Decimal Ounce (oz): 7.4 x 0.00001 / 1.4 x 0.000001 Troy Ounce (ozt): 6.7 x 0.00001 / 1.3 x 0.000001 Pennyweight (dwt): 135 x 0.0001 / 27 x 0.00001 Carat (ct): 1050 x 0.001 / ...