General question: avoirdupois or troy?

Discussion in 'Silver' started by moreotherstuff, Feb 21, 2020.

  1. moreotherstuff

    moreotherstuff Izorizent

    When you are talking weights for silver or gold, buying or selling, do you use the avoirdupois system or troy? Do you have expectations?

    1oz avoirdupois = 28.349g
    1oz troy = 31.103g

    16 avoirdupois oz to a pound
    12 troy oz to a pound

    1lb avoirdupois = 453.6g
    1lb troy = 372.2g

    Maybe it is simplest to just use grams?
     
  2. Ownedbybear

    Ownedbybear Well-Known Member

    Grammes for gold and platinum. Imperial ounces for silver. That's how it gets valued here.
     
  3. Marie Forjan

    Marie Forjan Well-Known Member

    I just use grams, the other weights, like penny weight, just confuse me!
     
    moreotherstuff and kyratango like this.
  4. trip98

    trip98 Well-Known Member

    I prefer grams and purity percentage for a scrap calculation as a starting point in valuing an item.
     
  5. Hollyblue

    Hollyblue Well-Known Member

    moreotherstuff likes this.
  6. moreotherstuff

    moreotherstuff Izorizent

    This is the source of my confusion. I've been told that precious metals are are in troy ounces. A gold coin I looked at had a certificate that stated 22k and had 2 weights in grams - one for the coin entire, and another, lesser, weight followed by 1/2 troy ounce pure gold.

    I think grams are the way to go.
     
  7. Hollyblue

    Hollyblue Well-Known Member

    Precious metals had always been measured in troy,it really didn't change until certain people in the government wanted metric to be the standard for the country. The gold and silver buying/selling craze started and people had easy access to gram scales and not dwt. scales. If you worked with troy measurement for many years you probably wouldn't think about it.
     
    Sunnarth and moreotherstuff like this.
  8. Ownedbybear

    Ownedbybear Well-Known Member

    There's excellent scientific and commercial reasons for using metric and a universal standard.
     
    trip98 and moreotherstuff like this.
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