How to calculate gold value
Enter a USD price per troy ounce, the gross gold-item weight in grams, and its nominal karat. The calculator converts the ounce price into a gram price, then applies the purity fraction to the weight. The result is an estimated metal-content value, excluding the terms of a real purchase or sale.
Estimated gold content value = (USD per troy ounce ÷ 31.1034768) × grams × (karat ÷ 24).
A worked 14K example
Use a deliberately hypothetical reference of $3,110.34768 per troy ounce. That is exactly $100 per fine gram for this example. Ten grams of nominal 14K gold contains about 5.833333 grams of fine gold. The calculated reference value is $583.33 after rounding the final dollar result.
This example explains the formula; it is not a live price or an offer. The source card above supplies a separately timestamped reference when the provider responds. You can replace it with a price you have checked yourself. Automatic refreshes preserve a manually entered price.
Which weight should you enter?
Use the documented gross metal weight to which the selected purity applies. If the scale measurement includes stones or non-metal components, the result can overstate fine-gold content. If a document already states the fine-gold weight, applying karat again would understate it. Establish what the weight represents first.
What karat tells the formula
The available nominal fractions are 24/24, 22/24, 18/24, 14/24, 10/24 and 9/24. These arithmetic inputs do not test purity. A marked item can require authentication or assay, and a particular product's verified fineness can differ from a simplified nominal-karat calculation.
Why this is not a scrap-gold offer
A dealer may assess the item and quote a different amount. A content calculation does not include testing, processing, handling, market spread, workmanship or collectible value. Ask how the actual payable amount was calculated and what deductions apply before agreeing to a sale.
Use the result as a comparison tool
Keep the entered price, its source, the measured weight, the purity evidence and the quoted dealer amount together. That makes differences easier to explain. Use our gold price page for unit context or the trading basics guide to distinguish bullion from other financial products.