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Ten Tools. One Honest Number Each.

Free Gold Calculators That Show Their Work

Every calculator shows its formula and inputs in the open — no hidden margins, no forced sign-up. Get accurate gold valuations, purity checks, and investment projections instantly.

Featured Calculators

Ten Tools. One Honest Number Each.

Every calculator shows its formula and inputs in the open — no hidden margins, no forced sign-up.

Gold Value Calculator

Enter weight and purity to get an instant, itemized value.

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Scrap Gold Calculator

Estimate what a refiner or buyer would pay for scrap.

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Jewelry Value Calculator

Value rings, chains and bracelets by weight and karat.

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Melt Value Calculator

See raw melt value before any dealer premium is applied.

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Gold Purity Checker

Decode hallmark stamps and confirm karat purity.

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Karat Converter

Convert between karats, millesimal fineness and percentage.

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Gram to Troy Ounce Converter

Switch instantly between grams, troy ounces and tolas.

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Gold Coin Value Calculator

Price common bullion coins by weight and mint premium.

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Gold Investment Calculator

Project returns on a gold allocation over time.

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Historical Gold Value Calculator

Look up what gold was worth on any past date.

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How It Works

Every Calculator Shows Its Formula

Gold Value = Weight × (Purity ÷ 24) × Live Spot Price × (1 + Premium%)
Enter Your Numbers

Weight, purity, and any premium. Every input is visible — nothing is hidden behind a black box.

See the Formula Work

Watch each step of the calculation as it happens. Weights convert, purity factors apply, and values resolve in real time.

Get One Honest Number

No ranges, no "call for price," no hidden spreads. One transparent valuation based on live market data.

Why Trust These Calculators

Built For Accuracy, Not For Upsells

Live Market Data

Gold spot prices update every 30 seconds from global exchanges.

100% Private

All calculations run in your browser. No data is ever stored or transmitted.

Transparent Formulas

Every calculator publishes its exact formula. No black boxes, no mystery math.

Always Free

No sign-up required. No paywalls. All ten calculators are free, forever.

Common Questions

Frequently Asked Questions

Yes. All ten calculators are completely free with no sign-up required. There are no paywalls, no premium tiers, and no hidden fees. We believe transparent gold valuation should be accessible to everyone.

Our calculators use live gold spot prices that update every 30 seconds from global market data sources. The spot price reflects the international wholesale gold price per troy ounce. Actual buy/sell prices from dealers may include additional premiums.

No account is needed. All calculations happen in your browser and your data stays on your device. We don't collect, store, or share any of your inputs or results.

Start with the Gold Value Calculator if you have a specific item to value. Use the Scrap Gold Calculator if you're selling to a refiner. Try the Karat Converter if you need to decode purity markings. The Investment Calculator helps with long-term planning.

Absolutely. All calculators are fully responsive and work on any device — desktop, tablet, or mobile phone. The interface adapts to your screen size for easy use anywhere.

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