Keep platinum separate from other white metals
This page requests XPT, the platinum symbol in the provider's feed. It does not use the silver price or treat the appearance of a white-metal item as evidence of platinum content. Start with the documented metal, gross weight and fineness before trying to estimate value.
Convert the troy-ounce reference
The displayed ounce is a troy ounce, equal to 31.1034768 grams. The gram figure is the source ounce reference divided by that weight. The kilogram figure is 1,000 times the gram value. Each display uses the same provider timestamp so the units remain comparable.
How platinum fineness changes the estimate
Fineness is a fraction out of 1,000. A nominal 950 item uses a 0.95 fine-platinum fraction, while 900 uses 0.90. If an item weighs 20 grams and its verified fineness is 950, the nominal fine-platinum content is 19 grams.
Estimated content value = gross grams × fineness ÷ 1,000 × reference USD per gram.
The calculator offers common fineness inputs, including 999.5, 950 and 900. These are calculation choices, not statements about the composition of an unidentified item. Stones, other components and the difference between gross and fine weight need to be resolved before relying on the result.
From a calculation to an actual quote
A fine-metal estimate leaves out fabrication, brand, condition, collectible value and a dealer's individual terms. Request a written product quote or a written buyback offer for the exact item. Keep payment charges, delivery, verification and timing alongside the headline amount when comparing offers.
Read the reference in context
A source request may fail, or a quote may be delayed. This page shows the received timestamp and labels stale references. If the provider is unavailable, you can enter your own USD-per-troy-ounce reference in the calculator. Check where that number came from and when it was quoted.
For other metals, visit the gold price page or silver price page. Our methodology explains the shared units, source and limitations.