Cross Reference Weight Comparison of Precious Metals

Cross Reference Weight Comparison of Precious Metals

To find the weight of an article in a metal different from that in which it is now made:
1. Find the present metal in the first vertical column.
2. Multiply the present weight by the factor in the same horizontal row under the new metal.
Example: A sterling silver ring weighs 8 grams, what will it weigh in 14kt.?
3. Along the horizontal row marked Stg in the first column under the heading 14 Kt we find 1.25 x 8 = 10 grams, weight in 14 Kt.

Weight Comparison Chart for Precious Metals

	Pt.	F.G.	22kt	18kt	14kt	10kt	9kt	F.S.	Stg
Pt.	1.00	0.90	0.82	0.70	0.60	0.53	0.53	0.49	0.48
F.G.	1.11	1.00	0.91	0.78	0.67	0.59	0.58	0.54	0.54
22kt	1.22	1.10	1.00	0.86	0.73	0.65	0.65	0.60	0.59
18kt	1.42	1.28	1.16	1.00	0.85	0.76	0.75	0.69	0.68
14kt	1.66	1.50	1.36	1.17	1.00	0.89	0.88	0.81	0.80
10kt	1.88	1.69	1.54	1.32	1.13	1.00	0.99	0.92	0.90
9kt	1.90	1.71	1.56	1.34	1.14	1.01	1.00	0.93	0.92
F.S.	2.04	1.84	1.68	1.44	1.23	1.09	1.08	1.00	0.99
Stg	2.07	1.87	1.70	1.46	1.25	1.11	1.09	1.01	1.00

This chart is not precise for all alloys of precious metals, however it will always provide a good indication within a reasonable tolerance.

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