Weight Of Sheet Metals

This is a table of weights per square inch in ounces or pennyweights

MM B&S INCH Fine Silver (oz) Sterling Silver (oz) Fine Gold (dwts) 10K Gold (dwts) 14K Gold (dwts) 18K Gold (dwts) Fine Platinum (oz)
6.54 .2576 2 1.42 1.41 52.5 31.4 35.5 42.3 2.91
5.19 .2043 4 1.12 1.12 41.6 24.9 28.1 33.6 2.31
4.11 .1620 6 0.894 0.884 33.0 19.8 22.3 26.6 1.83
3.26 .1285 8 0.709 0.701 26.2 15.7 17.7 21.1 1.45
2.59 .1019 10 0.562 0.556 20.8 12.4 14.0 16.7 1.15
2.05 .0808 12 0.446 0.441 16.5 9.85 11.1 13.3 0.913
1.63 0.0641 14 0.354 0.350 13.1 7.81 8.82 10.5 0.724
1.29 0.0508 16 0.281 0.277 10.4 6.21 7.00 8.35 0.574
1.02 0.0403 18 0.223 0.220 8.20 4.91 5.55 6.62 0.455
0.813 0.0320 20 0.176 0.174 6.51 3.90 4.40 5.25 0.361
0.645 0.253 22 0.140 0.138 5.16 3.09 3.49 4.216 0.286
0.511 0.0201 24 0.111 0.110 4.09 2.45 2.77 3.30 0.227
0.404 0.0154 26 0.088 0.087 3.24 1.94 2.19 2.62 0.180
0.330 0.0126 28 0.070 0.069 2.58 1.54 1.74 2.08 0.143
0.254 0.100 30 0.055 0.055 2.04 1.22 1.38 1.65 0.113

Source: Complete Metalsmith, Tim McCreight