Transparency
Methodology & data sources
Exactly how the prices and calculator results on this site are produced — no black boxes.
Data sources
Our gold and silver prices track the international wholesale spot markets — principally the London LBMA over-the-counter market, the global benchmark centre for precious metals, alongside COMEX futures pricing. These are the same wholesale rates that UK bullion dealers use as the basis for their own prices.
Update frequency
Prices are refreshed continuously while global markets are open — effectively around the clock from Monday to Friday, with reduced movement over the weekend. Every price on the site carries a timestamp showing when the last update was applied, so you can always judge freshness for yourself.
GBP conversion
Precious metals are traded globally in US dollars per troy ounce. We convert the dollar spot price to pounds sterling using the live GBP/USD exchange rate. This is why the UK price can move independently of the dollar price: a weaker pound raises the sterling price of gold and silver, and a stronger pound lowers it.
Troy ounces and grams
The troy ounce is the standard precious-metals unit and equals 31.1034768 grams — about 10% heavier than a kitchen (avoirdupois) ounce. Our per-gram price is the troy ounce price divided by 31.1034768. Every calculator on the site uses this exact conversion, multiplied by the purity of the item: value = spot ÷ 31.1034768 × purity × weight in grams.
Indicative pricing
All figures are indicative market rates for information only. They are not an offer to buy or sell, and they are not financial advice. Dealers quote their own prices: sellers of coins and bars charge a premium over spot, and scrap buyers pay a percentage of melt value. Always obtain live quotes before dealing.
Ready to run the numbers? Try the scrap gold calculator or jump back to the live prices.