To calculate the price of 14k gold, you multiply the current spot price of gold per gram by 0.583, which represents the 58.3% pure gold content in 14-karat jewelry. The full process takes three steps: find the spot price per troy ounce, convert it to grams, then adjust for purity. Once you know the formula, you can check the value of any 14k gold piece in under a minute.
The Three-Step Formula
Gold is priced internationally by the troy ounce. To figure out what your 14k gold is worth by weight, you need to bridge the gap between that per-ounce price and the actual gold content in your jewelry.
Step 1: Find the current spot price. Look up the live gold spot price per troy ounce. Financial sites, commodity trackers, and precious metals dealers all publish this number in real time. It fluctuates throughout the trading day.
Step 2: Convert to price per gram. One troy ounce equals 31.103 grams. Divide the spot price by 31.103 to get the price of pure gold per gram. You can also multiply the spot price by 0.0321507, which accomplishes the same conversion.
Step 3: Multiply by 0.583 for 14k purity. Since 14k gold is 58.3% pure gold (14 parts gold out of 24 total parts), multiply the per-gram price by 0.583. The result is the melt value of one gram of 14k gold.
A Worked Example
Suppose the spot price of gold is $3,000 per troy ounce. Here’s how the math plays out:
- Price per gram of pure gold: $3,000 ÷ 31.103 = $96.45
- Price per gram of 14k gold: $96.45 × 0.583 = $56.23
If you have a 14k gold chain that weighs 10 grams, its melt value at that spot price would be $56.23 × 10 = $562.30. That’s the intrinsic gold value, not what a buyer will necessarily pay you, but it gives you a solid baseline.
Why Melt Value Differs From Selling Price
The number you calculate is the melt value, meaning what the raw gold inside your piece would be worth if melted down and refined. When you sell to a dealer, pawn shop, or gold buyer, expect to receive less than this figure. Buyers need to cover refining costs, overhead, and profit margin. Offers typically range from 70% to 90% of melt value, depending on the buyer and the quantity you’re selling.
On the flip side, if your piece has collectible, antique, or designer value, it could sell for more than melt value to the right buyer. But for plain gold jewelry with no special provenance, melt value is the ceiling.
Weighing Your Gold Correctly
Accurate weight is critical. Kitchen scales work in a pinch, but a digital jewelry scale that reads in grams to at least one decimal place (0.1g) gives much better results. If your piece includes gemstones, clasps made of different metals, or non-gold components, those add weight that doesn’t count toward gold value.
Some gold buyers and older jewelry scales use pennyweights (abbreviated DWT) instead of grams. One pennyweight equals 1.555 grams. If your scale reads in pennyweights, multiply by 1.555 to convert to grams before running the formula.
Confirming Your Piece Is Actually 14k
Before calculating, verify that your gold is genuinely 14 karat. Look for a small stamp on the inside of a ring band, on the clasp of a necklace, or on the back of a pendant. Common markings for solid 14k gold include:
- 14K or 14KT: The standard stamp used in the U.S. and Canada
- 585 or 0.585: The European millesimal fineness mark, meaning 585 parts per thousand are pure gold
- 14ct: The British and Australian spelling, common on older pieces
- 14K P: “Plumb” gold, meaning the karat rating is exact rather than rounded
Two stamps that look similar but mean something very different: 14KGF (gold-filled) and 14KGP (gold-plated). Gold-filled jewelry has a thick layer of gold bonded to a base metal, while gold-plated pieces have only a thin coating. Neither carries the melt value of solid 14k gold, and neither should be priced using the formula above.
If your piece has no visible stamp, or you’re unsure, a jeweler can test it with an acid kit or electronic gold tester for a small fee.
Quick Reference for Other Weights
Once you know the per-gram value, scaling up is straightforward. Here are some common weight benchmarks using the same formula:
- Per gram: Spot price ÷ 31.103 × 0.583
- Per pennyweight: Multiply the per-gram value by 1.555
- Per troy ounce: Spot price × 0.583
That last one is the simplest shortcut. If gold is $3,000 per troy ounce, a full troy ounce of 14k gold is worth $3,000 × 0.583 = $1,749. You’d need about 31 grams of 14k gold to reach a troy ounce.
Where the Spot Price Comes From
The spot price reflects the current trading price for one troy ounce of 99.99% pure gold on global commodity markets. It moves constantly during market hours based on supply, demand, currency fluctuations, and economic conditions. When you look it up, you’re seeing a snapshot that could shift within minutes. For calculating the value of jewelry you plan to sell, the exact-to-the-minute price matters less than the general range. If you’re heading to a gold buyer, check the price that morning to have a realistic expectation of what your pieces are worth.