Precious Metals & Bullion

How many troy ounces of fine gold are in 15 grams of 9K gold?

⚡ Instant Calculated Answer

15 grams of 9K gold contains exactly 5.625 grams (0.1808 troy ounces) of pure fine gold, with an intrinsic scrap melt value of approximately $488.16 USD at $2,700/oz t.

0.1808 oz t Primary Metric
5.625 g Fine Au Secondary Metric

📐 Mathematical Formula & Step-by-Step Substitution

\[ W_{fine} = W_{gross} \cdot \left(\frac{9}{24}\right) = 15 \cdot 0.3750 = 5.625 \text{ g} = 0.1808 \text{ oz t} \]
Fine_Weight = 15g * (9/24) = 5.625g = 0.1808 oz t
  1. Determine fineness ratio of 9K gold: 9 / 24 = 0.3750 (or 375.0‰ millesimal fineness).
  2. Multiply gross weight by fineness: 15 g × 0.3750 = 5.625 grams of fine elemental gold (Au).
  3. Convert grams to troy ounces (1 oz t = 31.1034768 g): 5.625 / 31.1034768 = 0.1808 troy ounces.
  4. Convert grams to tolas (1 tola = 11.6638 g): 5.625 / 11.6638 = 0.4823 tolas.

📊 Nearby Parameter Reference Table

Gross Weight Fine Gold (g) Fine Gold (oz t) Melt Value ($2,700/oz)
7.5 g 2.812 g 0.0904 oz t $244.08
12 g 4.5 g 0.1447 oz t $390.69
15 g 5.625 g 0.1808 oz t $488.16
18 g 6.75 g 0.217 oz t $585.90
22.5 g 8.438 g 0.2713 oz t $732.51
30 g 11.25 g 0.3617 oz t $976.59
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