How to calculate your own Gold and silver prices

As part of Best price for Gold’s continuing business transparency program we encourage you to work out the price of your own gold as and when you wish!

This following is based on weighing your Gold in grams which per troy ounce is equal to 31.1035 grams and on current prices for gold.


  1. Look up the Gold and/or Silver price per ounce on the GBP graph of the home page of this site or via an on-line gold trading company.
  2. Divide the answer by 31.1035 to get the gold price per gram.
  3. Multiply the answer by .375 for 9ct or .585 for 14ct or .750 for 18ct or .916 for 22ct, If you have gold of a 'non standard' purity (eg. from outside the U.K.) use the Gold carat table for most common Gold content percentages.
  4. For silver follow the same process but divide by .999 for fine .925 for stirling and .800 for most other silver

You are left with the price per gram at that particular moment in time as the price is constantly changing 24 hours per day. If you prefer weighing in ounces do ensure you switch your weighing machine to Troy ounces (about 31g) not Avoirdupois ounces, which is used for weighing food (about 28g).

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