Scrap Gold Calculator
Old gold jewelry, broken chains, outdated class rings — the drawer full of “someday” gold has a precise cash value today. The Scrap Gold Calculator above finds it. Select the karat, enter the weight in grams and the current gold spot price, and it returns the purity percentage, pure gold content in grams and troy ounces, the price per gram, the melt value, and a realistic typical payout.
Gold buyers pay for melt value: the value of the pure gold content if the item were melted down. They do not pay for craftsmanship, brand names, or sentimental value — a $2,000 designer ring and a $200 plain band with the same gold content fetch the same scrap price. Knowing the melt value before you walk in is the difference between a fair deal and a bad one.
The key insight is karat. A 14K ring is not 14/24 pure gold by accident — it is 58.3% gold and 41.7% alloy metals, and you are only paid for the gold fraction. The calculator applies the karat math automatically, so the number you see is the number that matters.
How Karat Translates to Pure Gold
Karat measures gold purity in 24 parts. 24K is pure gold (99.9%+), 18K is 18/24 = 75% gold, 14K is 14/24 = 58.3% gold, and 10K is 10/24 = 41.7% gold — the legal minimum to be called gold in the United States. The remaining percentage is alloy metals like copper, silver, nickel, and zinc, which give gold its strength and color.
To find the pure gold in any item: weight × (karat ÷ 24). A 50-gram 14K bracelet contains 50 × 0.5833 = 29.17 grams of pure gold. That pure-gold weight is what gets multiplied by the market price — everything else in the calculation flows from this one step.
Common karat stamps to look for: 585 means 14K (58.5%), 750 means 18K, 417 means 10K, and 999 means 24K. European pieces often use these millesimal marks instead of the K system.
Troy Ounces, Grams, and the Spot Price
Gold is priced in troy ounces, not regular ounces. A troy ounce is 31.1035 grams, about 10% heavier than the avoirdupois ounce used for groceries. The spot price — the current market price for immediate delivery — is quoted per troy ounce and moves constantly during trading hours.
The conversion chain is: pure gold grams ÷ 31.1035 = troy ounces; troy ounces × spot price = melt value. The calculator also shows the price per gram of pure gold (spot ÷ 31.1035), which is handy for quick mental math at the buyer’s counter.
One more reality check: buyers pay a percentage of melt value, not 100%. Refining costs money, and the buyer needs a margin. Reputable buyers pay 85% to 95% of melt; the calculator shows 90% as a typical payout benchmark. Anyone offering 50% is hoping you do not know the math.
How to Use the Scrap Gold Calculator
Select the karat of your item (check the stamp inside rings or on clasps; when in doubt, have it tested). Weigh the item in grams — a kitchen scale works, and jewelers weigh for free. Enter the current gold spot price per troy ounce from any financial site. Click Calculate.
Compare the melt value with the typical payout: the first is the theoretical maximum, the second is what a fair buyer actually pays. If an offer comes in far below the typical payout, walk away.
Worked Example 1: 14K Gold Bracelet
Lisa has a broken 14K bracelet weighing 50 grams. The spot price is $2,900 per troy ounce. Step by step:
Step 1: Purity. 14 ÷ 24 = 58.3% pure gold.
Step 2: Pure gold content. 50 × 0.5833 = 29.17 grams of pure gold.
Step 3: Troy ounces. 29.17 ÷ 31.1035 = 0.9377 ozt.
Step 4: Price per gram. $2,900 ÷ 31.1035 = $93.24 per gram of pure gold.
Step 5: Melt value. 0.9377 × $2,900 = $2,719.42.
Step 6: Typical payout. $2,719.42 × 0.90 = $2,447.47. If a buyer offers Lisa $1,500, she now knows it is barely 55% of melt — an offer to refuse.
Worked Example 2: 18K Gold Necklace
Tom has an 18K necklace weighing 32.5 grams at the same $2,900 spot price.
Step 1: Purity. 18 ÷ 24 = 75.0% pure gold.
Step 2: Pure gold content. 32.5 × 0.75 = 24.38 grams.
Step 3: Troy ounces. 24.38 ÷ 31.1035 = 0.7837 ozt.
Step 4: Melt value. 0.7837 × $2,900 = $2,272.65.
Step 5: Typical payout. $2,272.65 × 0.90 = $2,045.39.
Compare the two examples: Tom’s necklace weighs 35% less than Lisa’s bracelet but is worth only 16% less — the higher karat more than compensates. Karat matters as much as weight, which is why guessing karat is the costliest mistake in gold selling.
Stones, Settings, and Non-Gold Parts
Buyers pay for gold weight only. Gemstones are usually removed and returned to you (or assigned no value), and heavy non-gold parts — steel clasps, glass, enamel — should be excluded from the weight. Weigh items with stones, then ask the buyer to weigh again after stone removal, or estimate and deduct.
Gold-filled and gold-plated items are a different universe: gold-filled is about 5% gold by weight, plated is a microscopic layer. Most scrap buyers pay little or nothing for plated items. Do not expect karat-item payouts for them — the calculator’s math assumes solid karat gold.
Where to Sell Scrap Gold Safely
Local jewelers and coin shops are usually the best first stop: you can watch the weighing and testing, negotiate face to face, and get paid immediately. Reputable online buyers with insured mail-in kits can be competitive but slower. Pawn shops typically pay the least — they are buying for resale risk, not melt.
Avoid hotel “gold parties” and cold-calling mailers with vague promises. Legitimate buyers test in front of you (acid test, XRF analyzer, or electronic tester), explain the karat and weight, and show the math. Anyone who will not show the scale or the test is telling you everything you need to know.
How Buyers Test Gold in Front of You
Legitimate buyers prove what your gold is before naming a price, and watching the test is your best protection. The classic acid test scratches the metal onto a stone and applies acid calibrated to a karat level — if the mark survives the 14K acid but dissolves under 18K acid, the piece is 14K. It is cheap, fast, and slightly destructive (a tiny scratch), which is why buyers test in hidden spots.
Electronic testers measure the metal’s conductivity against known karat references — non-destructive and quick, though less definitive on unusual alloys. The gold standard is XRF (X-ray fluorescence): a handheld gun that reads the exact elemental composition in seconds without touching the piece. Shops with XRF analyzers give the most trustworthy karat readings; if a buyer claims 10K on your stamped 14K piece, ask for the XRF readout.
Watch for red flags: buyers who refuse to test in front of you, who weigh on uncalibrated or hidden scales, who quote a price without mentioning karat or weight, or who rush you past the numbers. A fair buyer narrates the whole process — “14K, 32.5 grams, spot $2,900, 90% of melt” — because transparency costs them nothing.
Gold-Filled, Plated, and Vermeil: What They Are Really Worth
Not everything gold-colored is karat gold. Gold-filled items (marked 1/20 14K GF) have a thick layer of karat gold mechanically bonded to a base metal core — about 5% gold by weight. Some refiners buy gold-filled scrap at a small fraction of karat prices, but most local buyers offer little or nothing. Gold-plated (marked EP, GP, or HGE) has a microscopic electroplated layer — effectively zero recoverable gold, and no scrap buyer pays for it.
Vermeil (pronounced ver-MAY) is sterling silver plated with gold — the value is in the silver core, not the gold skin. Rolled gold plate (RGP) sits between plated and filled. The practical rule: if it is not stamped with a karat mark (10K, 14K, 585, 750), assume it has no scrap gold value until a buyer tests otherwise.
This is where beginners lose money — not by getting cheated on real gold, but by expecting karat payouts for plated items. Sort your pieces ruthlessly: karat-stamped in one pile, everything else in another. Have the questionable pile tested, expect little, and you will never be disappointed. The calculator’s math applies only to solid karat gold, which is exactly why the karat input matters so much.
Estate Gold: What to Do With Inherited Jewelry
Inherited gold arrives with emotions attached, so separate the sentimental decision from the financial one first. Set aside pieces with genuine family meaning — a grandmother’s wedding band, a father’s signet ring — before you value anything. What remains is inventory, and inventory should be handled with the same cold math as any other asset.
Sort the remainder into three piles: wearable or giftable (nice pieces someone might actually wear), resale-worthy (designer, antique, or gemstone pieces worth more than melt — get these appraised for resale value, not scrap), and scrap candidates (broken, worn, dated, or generic). Only the third pile belongs in the calculator. A common and costly error is scrapping everything: a signed Art Deco brooch can be worth five times its melt value to the right buyer.
For the scrap pile, follow the standard process — verify karat, weigh in grams, check spot, get three quotes — but add one estate-specific step: check for maker’s marks from notable houses (Tiffany, Cartier, Van Cleef) before anything goes to melt, since branded pieces carry premiums even when unfashionable. And keep records: inherited property generally gets a stepped-up cost basis to fair market value at inheritance in the US, which usually minimizes capital gains tax when you sell — but confirm with a tax professional, because the details depend on your jurisdiction and the estate.
Tips for Getting Top Dollar for Scrap Gold
- Know your melt value first. Run the calculator before contacting any buyer — it is your negotiating anchor.
- Verify the karat. Stamps can be wrong on old or foreign pieces. A jeweler’s acid test or XRF scan takes seconds.
- Weigh in grams yourself. A $15 digital scale prevents “scale surprises” at the counter.
- Remove stones and non-gold parts. Do not let buyers weigh steel clasps at gold prices — or rather, do not let them deduct mystery amounts for them.
- Get three quotes minimum. Payout percentages vary enormously; 90% vs 70% of melt is a huge swing.
- Check the live spot price. Quotes should track the day’s spot. A buyer using yesterday’s lower price is shortchanging you.
- Separate by karat. Mixed-karat lots get averaged down. Keep 10K, 14K, and 18K in separate bags.
- Never feel rushed. High-pressure “today only” offers are a red flag. Gold will still be valuable tomorrow.
Frequently Asked Questions
1. What is a scrap gold calculator?
It computes the melt value of gold items from karat, weight in grams, and the current spot price — showing purity, pure gold content, melt value, and a typical buyer payout.
2. What is melt value?
The value of an item’s pure gold content at current market prices, as if melted down. It ignores craftsmanship, brand, and design — only the gold counts.
3. How is karat converted to purity percentage?
Divide karat by 24. 14K = 58.3%, 18K = 75%, 10K = 41.7%. Multiply the item’s weight by this fraction to get pure gold content.
4. What is a troy ounce?
The standard unit for precious metals: 31.1035 grams, heavier than a regular ounce (28.35g). Spot prices are always quoted per troy ounce.
5. Why do buyers pay less than melt value?
Refining, assaying, overhead, and profit margin. Fair buyers pay 85–95% of melt; the calculator uses 90% as the typical benchmark.
6. How do I find the current spot price?
Any major financial site or precious-metals dealer site shows live gold spot prices during market hours. Use the day’s price when getting quotes.
7. Do buyers pay for gemstones?
Generally no — small melee diamonds and colored stones in scrap jewelry are usually removed and returned, or valued at zero. Large certified stones are the exception; sell those separately.
8. What about gold-plated jewelry?
Plating is microns thick — essentially no recoverable gold. Most scrap buyers will not pay for plated items. Gold-filled (marked 1/20) has about 5% gold content.
9. How can I tell if my gold is real?
Look for karat stamps (10K, 14K, 585, 750), check with a magnet (gold is not magnetic), or get a jeweler’s acid test or XRF scan — the definitive methods.
10. Should I sell to a pawn shop?
Only as a last resort. Pawn shops typically pay the lowest percentages of melt. Jewelers, coin dealers, and refiners usually pay significantly more.
11. Is it better to sell jewelry as jewelry or as scrap?
If the piece has designer, antique, or gemstone value beyond its gold content, sell it as jewelry. If it is broken, worn, or generic, scrap value is the right measure.
12. Do I pay taxes on scrap gold sales?
In many jurisdictions, gold is a collectible taxed at up to 28% on gains in the US. Keep records of what you paid versus what you received, and consult a tax professional.
13. What does 585 stamped on jewelry mean?
585 parts per thousand pure gold — the European millesimal mark for 14K. Similarly, 750 = 18K, 417 = 10K, 999 = 24K.
14. Can dental gold be scrapped?
Yes — dental gold is typically 10K to 18K and scraps like any karat gold. Remove any non-gold attachments first and have the karat tested.
15. When is the best time to sell scrap gold?
When spot prices are strong and you have no use for the items. Timing the absolute peak is luck; selling into a strong market with a 90%-of-melt buyer is skill.
CONCLUSION
The Scrap Gold Calculator replaces guesswork with melt-value math: karat to purity, grams to troy ounces, spot price to dollars. Know your number before any buyer names theirs, demand a fair percentage of melt, and walk away from lowball offers with confidence. Weigh your gold, run the numbers above, and sell smart.