Find out exactly what your gold is worth with this live gold price calculator. Enter the weight and karat purity of a ring, chain, coin, or bar, and today's gold price loads automatically and updates in real time - the same way our Currency Converter pulls live exchange rates. Prefer your own reference price instead? Just type over it and the value updates instantly either way.
Whether you're checking scrap gold before selling, valuing an inherited piece, or just curious what 24K, 22K, 18K, 14K, or 10K gold is worth per gram right now, this calculator gives you an accurate, up-to-the-minute answer - no sign-up, no app, no guesswork.
Gold Calculator
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The formula
10 grams of 18K gold at $65/gram (24K price): pure content = 10 x 0.75 = 7.5g, value = 7.5 x 65 = $487.50.
Step-by-step guide
- Enter the item's weight and select the unit (grams, troy ounces, or standard ounces).
- Select the karat - the purity marking, often stamped on jewelry (like "18K" or "750" for 18K).
- The current gold price loads automatically - or type your own price to use a different reference.
Why karat matters so much for value
Karat measures gold purity out of 24 parts - 24K is (nearly) pure gold, while lower karats are alloyed with other metals (like copper or silver) for durability, common in jewelry since pure gold is quite soft. This is exactly why an 18K gold ring isn't worth 75% as much as people sometimes assume from a quick glance - it's precisely 18/24 = 75% pure gold by weight, and this gold price calculator applies that exact fraction automatically.
Note: This estimates the raw gold value based on weight, purity, and the live spot price alone. An actual jewelry item's market or resale value may differ due to craftsmanship, brand, gemstones, or a buyer's specific offer - this calculator gives you the underlying metal value as a reference point, not a guaranteed sale price.
Common mistakes
Frequently asked questions
Is this a live gold price calculator?
Yes - the gold price field loads automatically from a live market feed when the page opens, the same way our Currency Converter works. You can still type your own price at any time to override it.
What does the stamp "750" on jewelry mean?
It's an alternative purity marking meaning 75% pure gold, equivalent to 18K - jewelry is sometimes marked with this three-digit millesimal fineness system instead of (or alongside) the karat number.
Will a buyer actually pay this calculated value?
This gives the raw melt value of the gold content at the live spot price - actual buyers (especially retail jewelry buyers) commonly pay somewhat less than this to cover their own margin, refining costs, and profit, so treat this as a reference ceiling rather than a guaranteed offer.
How often does the gold price update?
The price loads fresh each time you open the page, reflecting the current live market spot price at that moment - refresh the page for the latest price if you've had it open for a while.
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