Live Gold Price Updated

18K Scrap Gold Calculator

Calculate the melt value of your 18 karat scrap gold jewelry using live spot prices. 18K gold is 75.0% pure — a higher-purity jewelry alloy.

Calculate Your Gold's Value
⚡ Live Gold Price (per Troy Oz) Live Spot
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$
Estimated 18K Scrap Gold Value
$0.00
💰See what buyers actually pay — after deductions→
Please enter a valid weight.
📖 Overview

What Is an 18K Scrap Gold Calculator?

The 18K Gold Value Calculator estimates the theoretical melt value of 18K gold from its weight, purity, and current gold price.

Calculate the melt value of your 18 karat scrap gold jewelry using live spot prices. 18K gold is 75.0% pure — a higher-purity jewelry alloy.

⚡ Live Spot Basis ⚖️ Multi-Karat 📊 Payout Modeling
Gold inspection illustration
Gold inspection illustration
🧮 Formula

18K Scrap Gold Value Formula

The calculator follows this formula so the estimate stays tied to weight, purity, and the current gold spot price:

V=W×C×0.750×P

V is estimated melt value, W is item weight, C is the unit conversion to troy ounces, and P is the gold spot price per troy ounce.

Calculations use standard weight and purity formulas with live market spot prices. See our Calculation & Editorial Methodology for complete formula steps and limitation disclosures.

18K Scrap Gold Payout Estimator

Model buyer deductions for 18K scrap gold

18K gold contains more fine gold per gram than lower karats, but real offers still vary by buyer, testing method, lot size, and fee structure. Use this estimator to compare scenarios rather than assume a standard payout.

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Refineries & SmeltersTerms vary by lot and processCompare the final net payout
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Jewelers & DealersMay pay for melt, resale, or bothAsk what assumptions are built in
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Pawn Shops & KiosksOffers can vary widelyConvenience may come with a larger spread
Buyer Payout Ratio85%
Applied buyer deduction: 15% (buyer margin) Example input — replace with the buyer's quoted payout percentage.
Melt Value
$0.00
Buyer Spread
−$0.00
Fees & Loss
−$0.00
Net Cash
$0.00

18K Gold Market Value Rates

Live 18K scrap gold price per gram, per pennyweight (DWT), and per troy ounce

18K gold (750 fineness) carries more fine gold per gram than 14K or 10K, so its melt value rises proportionally with the live spot price. Select karats below to compare current theoretical rates.

Per Gram
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1 gram = 0.0322 troy oz
Per Pennyweight
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1 DWT = 1.555 grams
Per Troy Ounce
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1 troy oz = 31.1035 g

How to Calculate 18K Scrap Gold Value

Three steps — weigh, confirm 18K purity, get your melt value

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Weigh Your 18K Gold
Use a digital gram scale. Rings, chains, bracelets, watch cases, and earrings are examples of items that may use 18K gold.
Exclude stones and non-gold parts from the alloy weight where practical. For small jewelry items, a scale with 0.01g resolution can reduce rounding error.
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Confirm 18K Purity
Look for "18K", "18KT", "750", or ".750" stamps. Hallmark formats vary by jurisdiction and maker. The calculator defaults to 18K.
Treat the stamp as a starting point. Learn how 750 marks and hallmarks work across international jewelry.
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Get Your 18K Gold Value
Hit calculate. The tool converts your weight and 18K purity into a live melt-value estimate.
Use the payout estimator to compare that melt estimate with actual buyer offers, or review how to calculate scrap gold value manually.

18K Gold Price Per Gram

The 18K per-gram rate comes from the live spot price divided by 31.1034768 and multiplied by the 18K purity fraction. Because the spot price moves, the current per-gram melt value moves with it.

18K Gold Price Per Troy Ounce

An 18K troy-ounce estimate is the live 24K spot price multiplied by 0.75. One troy ounce equals 31.1034768 grams or 20 DWT.

18K Gold in Fine Jewelry

18K gold is widely used in fine jewelry and commonly marked "750". Its 75% gold content gives it a higher melt value per gram than lower-karat alloys, while the remaining alloy metals contribute additional strength for wearable pieces.

18K Scrap Gold Valuation Considerations

Understanding 18 karat gold in jewelry and scrap pricing

This 18K scrap gold calculator uses live market data to calculate the melt value of your 18 karat gold items. 18K gold contains 75% pure gold (fineness 750), so its melt value tracks directly with the live spot price.

18K
75.0% Gold

18K Gold Purity and Composition

18K gold contains an exact 18/24 (75.0%) gold fraction, commonly marked with the 750 fineness stamp. This higher gold fraction compared to 10K and 14K means a greater proportion of the piece's weight translates directly into melt value.

Refining Efficiency of 18K Gold

Higher purity means more of each gram is gold, but payout still depends on the buyer's overhead, testing, fee structure, and resale path. Use real quotes to see whether a buyer actually pays a better percentage for 18K in practice.

Common 18K Gold Scrap Items

Examples of 18K scrap can include chains, watch cases, rings, bracelets, earrings, and estate jewelry. Weights and alloy compositions vary by item. Look for marks such as "18K" or "750", then use appropriate testing when purity confirmation matters.

Specialized Tools

Specialized Scrap Gold Calculators

Specialized tools for every scrap gold scenario — pick the one that matches your gold item.

Frequently Asked Questions About 18K Scrap Gold

Divide the live spot price per troy ounce by 31.1034768 and multiply by 0.75. That gives the current theoretical melt value per gram before any buyer spread or fees.

18K gold contains 75% gold, balancing relatively high gold content with added durability from alloy metals. It is commonly marked with a 750 hallmark, although hallmarking rules vary by jurisdiction.

Look for "18K", "18KT", "750", or ".750" stamps. Hallmark formats vary by jurisdiction and maker, so treat a stamp as a starting point and use appropriate testing when confirmation matters.

Example using a hypothetical spot price of $3,235/oz: 18K works out to about $78.01/g versus about $60.67/g for 14K, a difference of about $17.34 per gram. Because 18K contains more fine gold, the theoretical melt value per gram is about 29% higher at the same spot price.

Examples include chains, watch cases, rings, bracelets, estate jewelry, and earrings. Item weights vary widely, so weigh each piece and exclude stones or other non-gold components when estimating melt value.

Sometimes they do, but not by a universal percentage. Compare the buyer's net offer against calculated melt value and ask whether any assay, refining, shipping, or handling fees are included.

Weigh the bracelet, convert the weight to a fine-gold amount using the 0.75 purity fraction, and apply the current spot price. Remove stones or non-gold parts first if you want a cleaner melt-value estimate.