How do I calculate the gold price per gram?

Multiply the weight of your gold piece in grams by the purity ratio (24K=100%, 21K=87.5%, 18K=75%, 14K=58.3%), then by the spot price per gram in USD. Convert to your local currency using the day's mid-market FX rate. Our calculator does all of this automatically.

What is the difference between 21K and 24K gold?

24K is pure 99.9% gold (investment bullion); 21K is 87.5% gold alloyed with 12.5% hardening metals (the most common karat in Gulf jewelry). Price relationship: 21K equals approximately 87.5% of the 24K price for the same weight.

Does the calculator include making charges?

No. The calculator shows the raw spot-equivalent gold value (spot price × purity × weight). Jewellery shops add a making charge set by each shop, and local VAT. The result is the floor price before any retail premium.

Which currencies does the calculator support?

51 currencies, including USD, SAR, JOD, AED, EGP, EUR, GBP, JPY, CNY, INR, PKR and more. Exchange rates update daily from open central-bank data.

How often are gold prices updated?

Spot gold (XAU/USD) is read from Swissquote at least every five minutes and follows live PAXG/USD quotes from Binance, Coinbase and Kraken while the page is open. Exchange rates are daily mid-market rates from fawazahmed0/currency-api.

Gold Price Calculator

Calculate the value of any gold weight (gram, ounce, kilogram) in any karat and any currency.

Gold Calculator

Convert grams, ounces, or kilos into live currency value.

Quantity

Gram

Unit

Karat

Currency

Estimated value

$ 1,269.42

10.00 g × $126.9418/g = $1269.42 (USD base)

Frequently asked questions

How do I calculate the gold price per gram?: Multiply the weight of your gold piece in grams by the purity ratio (24K=100%, 21K=87.5%, 18K=75%, 14K=58.3%), then by the spot price per gram in USD. Convert to your local currency using the day's mid-market FX rate. Our calculator does all of this automatically.
What is the difference between 21K and 24K gold?: 24K is pure 99.9% gold (investment bullion); 21K is 87.5% gold alloyed with 12.5% hardening metals (the most common karat in Gulf jewelry). Price relationship: 21K equals approximately 87.5% of the 24K price for the same weight.
Does the calculator include making charges?: No. The calculator shows the raw spot-equivalent gold value (spot price × purity × weight). Jewellery shops add a making charge set by each shop, and local VAT. The result is the floor price before any retail premium.
Which currencies does the calculator support?: 51 currencies, including USD, SAR, JOD, AED, EGP, EUR, GBP, JPY, CNY, INR, PKR and more. Exchange rates update daily from open central-bank data.
How often are gold prices updated?: Spot gold (XAU/USD) is read from Swissquote at least every five minutes and follows live PAXG/USD quotes from Binance, Coinbase and Kraken while the page is open. Exchange rates are daily mid-market rates from fawazahmed0/currency-api.