Pt 29.961 Pd 32.379 Rh 144.678 Au 76.705 Ag 0.918
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These calculators facilitate the conversion between gold purity expressed in karats and other common units of measurement such as percentage, parts per thousand (promil), and parts per million (ppm). Understanding these conversions is crucial for accurately assessing the quality and value of gold.

  1. Karat to Percentage Conversion:
    • Karats are a measure of the purity of gold alloys, with 24 karats representing pure gold (99.9% gold content). Each karat corresponds to 1/24th part of pure gold in the alloy. For example, 18 karat gold contains 18 parts gold and 6 parts other metals.
    • The conversion to percentage involves dividing the karat value by 24 and then multiplying by 100 to express the purity as a percentage. For instance, 18 karat gold would be (18/24) * 100 = 75% pure gold.
  2. Karat to Promil Conversion:
    • Promil, short for parts per thousand, is another common measure of gold purity. It represents the number of parts of pure gold per thousand parts of the alloy. The calculation is straightforward: simply multiply the karat value by 41.67 (since there are 41.67 parts per thousand in one karat). For example, 18 karat gold would be 18 * 41.67 = 750 promil.
  3. Karat to PPM (Parts Per Million) Conversion:
    • PPM, or parts per million, is used in very precise measurements, particularly in industrial and scientific contexts. It denotes the number of gold atoms per million atoms in the alloy. To convert karats to ppm, you multiply the karat value by 41,666.67 (since there are 41,666.67 parts per million in one karat). For example, 18 karat gold would be 18 * 41,666.67 = 750,000 ppm.

Importance:

  • Gold assay reports from laboratories may present gold purity in any of these units, depending on industry standards and requirements. Customers need to be able to interpret and compare these values to understand the quality and value of the gold they are purchasing or selling.
  • A gold karat conversion calculator provides a convenient way for customers to make these comparisons, ensuring transparency and accuracy in gold transactions.

Conclusion:

  • Gold karat conversion calculators play a vital role in the gold industry by facilitating the conversion between karats and other common units of measurement such as percentage, promil, and ppm. By understanding and utilizing these conversions, individuals can make informed decisions when buying or selling gold, ensuring fair and transparent transactions.
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