Troy ounces vs grams
One troy ounce equals exactly 31.1034768 grams. Jewellery and metric bullion bars are often labelled in grams, while XAUUSD spot and many futures are quoted per troy ounce. This converter keeps both units in sync and multiplies by your USD/oz input for a rough notional. For live chart context open XAUUSD, weekend tape on weekend markets, or the educational XAUUSD ADR sample. Not investment advice — CFD contract sizes may differ from physical ounces.