How is gold value calculated?

Gold value = weight (in troy ounces) × live spot price (USD/oz) × karat purity factor × FX rate. For example, 10 g of 18k gold ≈ 10 ÷ 31.1035 × spot × 0.75, then converted to your currency.

What karats does the calculator support?

24k (99.9% pure), 22k (91.67%), 21k (87.5%), 18k (75%), 14k (58.3%), 10k (41.67%) and 9k (37.5%). Hallmarks 999, 916, 875, 750, 585, 417 and 375 map to these karats.

Which weight units can I use?

Grams, troy ounces, kilograms, tola (11.6638 g, used in India/Pakistan), pennyweight (dwt, 1.555 g) and grains (0.0648 g).

Is the gold price live?

Yes. Spot prices and FX rates refresh every few minutes from market data feeds, so the calculator always reflects current market value.

Will a jeweler pay the calculated value?

No. Retailers and refiners pay 70–90% of spot for scrap to cover refining, assay and margin. Use the Scrap Gold Calculator to model that discount.

How accurate is the calculator?

Mathematically exact for the inputs you provide. Real-world value depends on accurate weighing (use a 0.1 g scale), correct karat identification, and the buyer's payout percentage.

Tools

Gold Calculator

Calculate the live value of any gold item — jewelry, coins, bars or scrap. Choose your karat, enter the weight and pick your currency.

Gold Value Calculator

Live spot: $4,539.78 / troy oz

WeightUnitPurity (Karat)Currency

Estimated market value

$145.96

1 Gram of 24k gold · 0.0322 troy oz

24k price today: $145.96 / gram · $1,702.42 / tola · $4,539.78 / oz

How the calculator works

Pure gold (24k) is 100% gold by weight. Other karats are alloyed for hardness — 22k is 91.67% pure, 18k is 75%, 14k is 58.3% and 10k is 41.67%. The calculator multiplies your weight by the live spot price in USD per troy ounce, converts to your currency, then scales by the karat purity factor.

Frequently asked questions

How is gold value calculated?: Gold value = weight (in troy ounces) × live spot price (USD/oz) × karat purity factor × FX rate. For example, 10 g of 18k gold ≈ 10 ÷ 31.1035 × spot × 0.75, then converted to your currency.
What karats does the calculator support?: 24k (99.9% pure), 22k (91.67%), 21k (87.5%), 18k (75%), 14k (58.3%), 10k (41.67%) and 9k (37.5%). Hallmarks 999, 916, 875, 750, 585, 417 and 375 map to these karats.
Which weight units can I use?: Grams, troy ounces, kilograms, tola (11.6638 g, used in India/Pakistan), pennyweight (dwt, 1.555 g) and grains (0.0648 g).
Is the gold price live?: Yes. Spot prices and FX rates refresh every few minutes from market data feeds, so the calculator always reflects current market value.
Will a jeweler pay the calculated value?: No. Retailers and refiners pay 70–90% of spot for scrap to cover refining, assay and margin. Use the Scrap Gold Calculator to model that discount.
How accurate is the calculator?: Mathematically exact for the inputs you provide. Real-world value depends on accurate weighing (use a 0.1 g scale), correct karat identification, and the buyer's payout percentage.

Gold Purity Calculator

Karat ↔ fineness ↔ %, pure-gold weight & alloy blender

Scrap Gold Calculator

Multi-row scrap with buyer payout %

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