Gold Price Calculator

A Gold Price Calculator helps you find the total value of your gold items based on their weight, purity, and the current market price of gold. This is useful for buyers, sellers, and investors who want to make informed decisions without manually performing complex conversions. By using this calculator, you can quickly determine the worth of your gold jewelry, coins, or bullion in a transparent and accurate way.

This calculator falls under the category: Precious Metals / Financial Calculators.

formula

Primary Formula: Gold Value

Gold Value = Price Per Gram * Weight in Grams

Component Formulas:

1. Price Per Gram

Price Per Gram = (Current Gold Spot Price / 31.1035) * (Karat / 24)
Current Gold Spot Price: The live market price for one troy ounce of pure (24k) gold.
31.1035: The number of grams in one troy ounce (standard for spot prices).
Karat: The purity of the gold item (e.g., 24, 22, 18, 14, 10).
24: The benchmark for pure gold.

2. Weight in Grams

If the weight is already in grams, you can use it directly. Otherwise, convert it from other units:

To convert from Ounces (Avoirdupois) to Grams:

Weight in Grams = Weight in Ounces * 28.3495

To convert from Troy Ounces to Grams:

Weight in Grams = Weight in Troy Ounces * 31.1035

To convert from Pennyweight (dwt) to Grams:

Weight in Grams = Weight in Pennyweight * 1.55517

Gold Price Quick Reference Table

Karat	Purity (%)	Conversion Multiplier (Price Per Gram)
24k	100%	1.0000
22k	91.67%	0.9167
18k	75%	0.7500
14k	58.33%	0.5833
10k	41.67%	0.4167

Note: Multiply the multiplier by the spot price per gram to find the price for that karat gold.

Example

Suppose the current gold spot price is 1,900 USD per troy ounce, and you have a 22k gold ring weighing 15 grams.

Price Per Gram = (1,900 / 31.1035) * (22 / 24) = 57.02 USD
Gold Value = 57.02 * 15 = 855.30 USD

This means your gold ring’s estimated value is 855.30 USD.

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