FREE Gold Calculator 2026

Know What Your Gold Is Worth Before Anyone Else Tells You

Every gold valuation comes down to three inputs: how much it weighs, how pure it is, and what gold is trading for right now. Enter those three into the calculator above and you get the melt value — the baseline number every honest buyer in the country starts from.

That baseline matters because the gold trade runs on information gaps. A buyer who knows the melt value and a seller who doesn’t are not negotiating; one of them is guessing. This page exists so you’re never the one guessing.

The Three Inputs, and How to Get Each One Right

Weight. Weigh the piece on a digital jeweler’s scale in grams — a $15 pocket scale is accurate enough for most jewelry. Weigh only the metal: pop out stones if you can, and don’t include clasps or settings made of base metal. A tenth of a gram of 18K gold is worth real money at today’s prices, so don’t eyeball it. If your scale reads in pennyweights or you need to convert between units, our gold weight calculator handles the conversions.

Purity. Look for the hallmark stamp — usually inside a ring band, on a clasp, or on the back of a pendant. In the US you’ll most often see 10K, 14K, or 18K. You’ll also run into millesimal stamps like 585 (14K) or 750 (18K), especially on imported pieces. No stamp? A jeweler can test it in about a minute. Our gold purity calculator converts between karat, percentage, and fineness if the stamp uses a system you don’t recognize.

Spot price. The calculator pulls the live price automatically — check the price strip at the top of this page. Gold trades around the clock and the number moves all day, so an estimate from last week is already stale. The strip updates hourly from our market feed.

A Worked Example (Illustrative, October 2026)

Say you have a 14K gold chain weighing 22 grams.

• 14K means 58.3% pure gold, so the chain holds 22 × 0.583 ≈ 12.83 grams of pure gold.
• At an illustrative price of $130 per gram of pure gold: 12.83 × $130 ≈ $1,668 melt value.

That’s the ceiling — the value of the metal if refining were free. What a buyer actually offers is a different number: refiners, pawn shops, and jewelers typically pay 70–90% of melt to cover assay, refining, and their margin. Our guide to the best place to sell gold compares what each type of buyer actually pays.

Which Calculator Do You Actually Need?

This main calculator covers most situations, but the specialized tools go deeper:

• Gold weight calculator — converting grams, troy ounces, pennyweights, tolas, and kilograms.
• Gold purity calculator — karat, fineness, and hallmark conversions.
• Gold price converter — translate a price per gram into per-ounce, per-pennyweight, and more.
• Scrap gold calculator — melt value plus a buyer-payout slider for broken jewelry and dental gold.
• Gold melt value calculator — when melt value is (and isn’t) the right number.
• Gold jewelry calculator — pieces with stones, where you deduct non-gold weight first.
• Gold coin value calculator — American Eagles, Buffalos, Krugerrands, Maples, and more.
• Gold profit calculator — buy price vs. sell price, profit and ROI.

Reading the Live Price Strip

The strip at the top of the page shows today’s price per gram for each common karat — 24K through 10K — so you can sanity-check any calculation at a glance. Two things to know about it:

First, those per-gram numbers are derived from the wholesale spot price, updated hourly. They move during the trading week and freeze on weekends when markets are closed. If you calculate on a Sunday, you’re using Friday’s close — fine for planning, but re-run it before a Monday sale.

Second, the strip is 100% melt math — it doesn’t include any buyer’s margin. Use it as your anchor: any offer you receive should be expressed as a percentage of the strip number. “I’ll give you $60 a gram for 14K” becomes “$60 ÷ today’s 14K gram price = 77% of melt.” That single conversion turns every negotiation from vibes into arithmetic.

Mistakes That Quietly Cost Sellers Money

Weighing in the wrong unit. A scale set to avoirdupois ounces instead of grams, read as if it were grams, produces nonsense. Always confirm your scale reads in grams before you start.

Trusting the stamp blindly. Most stamps are honest; some aren’t. Heavy pieces with no stamp, or stamps that look laser-etched yesterday on a “vintage” piece, deserve a test. When the karat is uncertain, value it at the lower candidate — you’ll never be disappointed, and you’ll sometimes be pleasantly surprised.

Forgetting the setting’s weight. A ring’s total weight includes the shank, which is gold — but earring posts, spring clasps, and some pendants’ bails may be base metal. The jewelry calculator page covers deductions in detail; for a quick melt estimate here, knock off your best guess for non-gold parts.

Calculating once and negotiating for a week. Gold can move 1–2% in a day during volatile stretches. On a $2,000 lot, that’s $20–$40 of drift. Refresh the calculation the morning you sell.

Frequently Asked Questions

How accurate is this gold calculator?

The math is exact — it’s the same formula refiners use: weight × purity × spot price. Accuracy depends entirely on your inputs. The two places people go wrong are the scale reading (weigh in grams on a calibrated jeweler’s scale, stones removed) and the karat (verify the hallmark rather than guessing). Get those right and the estimate is as good as any dealer’s first-pass number.

Why does the calculator show a different number than a buyer offered me?

The calculator shows 100% melt value — the theoretical maximum. Buyers pay less because they have to assay, refine, and resell the metal, and they need a margin. Offers of 70–90% of melt are normal; the exact percentage depends on the buyer type, quantity, and how the market is moving that day.

Should I use grams or troy ounces?

Use grams for the input — that’s what jeweler’s scales read, and it’s the most precise for small pieces. The calculator converts internally. Just never confuse troy ounces with regular (avoirdupois) ounces: a troy ounce is 31.1 grams while a standard ounce is 28.35 grams, and mixing them up understates value by about 10%.

Does the calculator account for craftsmanship or brand value?

No — and that’s deliberate. Melt value is the floor, the one number nobody can argue with. A Cartier piece or a rare coin can be worth far more than melt, but that premium is subjective and market-dependent. If your piece might carry a premium (designer jewelry, collectible coins), get it appraised as well as calculated.

How often is the gold price updated?

The price strip at the top of the page refreshes hourly from our market data feed during the trading week. If gold is moving fast, re-run your calculation right before you sell so you’re negotiating against today’s number, not yesterday’s.

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