Precious Metals & Bullion

How many troy ounces of fine gold are in 75 grams of 18K gold?

⚡ Instant Calculated Answer

75 grams of 18K gold contains exactly 56.25 grams (1.8085 troy ounces) of pure fine gold, with an intrinsic scrap melt value of approximately $4,882.95 USD at $2,700/oz t.

1.8085 oz t Primary Metric
56.25 g Fine Au Secondary Metric

📐 Mathematical Formula & Step-by-Step Substitution

\[ W_{fine} = W_{gross} \cdot \left(\frac{18}{24}\right) = 75 \cdot 0.7500 = 56.25 \text{ g} = 1.8085 \text{ oz t} \]
Fine_Weight = 75g * (18/24) = 56.25g = 1.8085 oz t
  1. Determine fineness ratio of 18K gold: 18 / 24 = 0.7500 (or 750.0‰ millesimal fineness).
  2. Multiply gross weight by fineness: 75 g × 0.7500 = 56.25 grams of fine elemental gold (Au).
  3. Convert grams to troy ounces (1 oz t = 31.1034768 g): 56.25 / 31.1034768 = 1.8085 troy ounces.
  4. Convert grams to tolas (1 tola = 11.6638 g): 56.25 / 11.6638 = 4.8226 tolas.

📊 Nearby Parameter Reference Table

Gross Weight Fine Gold (g) Fine Gold (oz t) Melt Value ($2,700/oz)
37.5 g 28.125 g 0.9042 oz t $2,441.34
60 g 45.0 g 1.4468 oz t $3,906.36
75 g 56.25 g 1.8085 oz t $4,882.95
90 g 67.5 g 2.1702 oz t $5,859.54
112.5 g 84.375 g 2.7127 oz t $7,324.29
150 g 112.5 g 3.617 oz t $9,765.90
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