Precious Metals & Bullion

How many troy ounces of fine gold are in 500 grams of 21K gold?

⚡ Instant Calculated Answer

500 grams of 21K gold contains exactly 437.5 grams (14.066 troy ounces) of pure fine gold, with an intrinsic scrap melt value of approximately $37,978.20 USD at $2,700/oz t.

14.066 oz t Primary Metric
437.5 g Fine Au Secondary Metric

📐 Mathematical Formula & Step-by-Step Substitution

\[ W_{fine} = W_{gross} \cdot \left(\frac{21}{24}\right) = 500 \cdot 0.8750 = 437.5 \text{ g} = 14.066 \text{ oz t} \]
Fine_Weight = 500g * (21/24) = 437.5g = 14.066 oz t
  1. Determine fineness ratio of 21K gold: 21 / 24 = 0.8750 (or 875.0‰ millesimal fineness).
  2. Multiply gross weight by fineness: 500 g × 0.8750 = 437.5 grams of fine elemental gold (Au).
  3. Convert grams to troy ounces (1 oz t = 31.1034768 g): 437.5 / 31.1034768 = 14.066 troy ounces.
  4. Convert grams to tolas (1 tola = 11.6638 g): 437.5 / 11.6638 = 37.5092 tolas.

📊 Nearby Parameter Reference Table

Gross Weight Fine Gold (g) Fine Gold (oz t) Melt Value ($2,700/oz)
250 g 218.75 g 7.033 oz t $18,989.10
400 g 350.0 g 11.2528 oz t $30,382.56
500 g 437.5 g 14.066 oz t $37,978.20
600 g 525.0 g 16.8791 oz t $45,573.57
750 g 656.25 g 21.0989 oz t $56,967.03
1000 g 875.0 g 28.1319 oz t $75,956.13
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