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Precious Metal Weight Conversion - Weight Conversion Chart


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Converting the weight of one precious metal to another.


Use our chart below for reference, to calculate an approximate weight for most precious metals. Since most precious metals have varying densities, any given quantity of metal will weigh differently depending on the choice. Use our straightforward and simple chart. Most of the jewellery industry uses 18ct Gold as a base weight. The information in our chart applies to most precious metals and jewellery materials. For example, Platinum, Palladium, Gold, Silver and wax.


Step-by-Step Conversion


Example: Item in 18ct White Gold weighing 5g we wish to find out the equivalent weight in Platinum.

Step 1. Choose the metal for your item. e.g. 18ct Gold down the left-hand side.

Step 2. Find the metal you wish to convert the weight to along the top of the chart. e.g Platinum.

Step 3. Multiply your known weight of the item by the figure in the box. 1.34 for this example.

An item weighing 5g in 18ct White Gold would therefore equal (5 x 1.34) = 6.70g in Platinum.

Precious Metal Weight Conversion Chart

Precious Metal Weight Conversion Chart

Metal Wax Sterling Silver 9ct Gold 14ct Gold 18ct Gold 22ct Gold Fine Gold Platinum 950 Palladium
Wax 1.00 10.30 11.20 14.10 15.70 17.80 19.50 20.60 12.00
Sterling Silver 0.097 1.00 1.11 1.31 1.50 1.73 1.87 2.08 1.15
9ct Gold 0.089 0.90 1.00 1.18 1.36 1.59 1.72 1.88 1.04
14ct Gold 0.071 0.76 0.85 1.00 1.14 1.29 1.40 1.59 0.88
18ct Gold 0.064 0.67 0.74 0.88 1.00 1.15 1.25 1.34 0.77
22ct Gold 0.056 0.58 0.63 0.78 0.90 1.00 1.08 1.21 0.67
Fine Gold 0.051 0.53 0.58 0.72 0.83 0.94 1.00 1.11 0.62
Platinum 0.049 0.48 0.53 0.63 0.72 0.83 0.90 1.00
950 Palladium 0.083 0.87 0.96 1.14 1.30 1.49 1.62 1.74 1.00