Troy Pound (LBt) = Troy Ounce (OZt)

Discussion in 'Silver' started by argento, Sep 17, 2012.

  1. argento

    argento Well-Known Member Silver Stacker

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    I'm sure this topic has come up before, but I was unable to locate the post using the search engine.

    Can someone please tell me what the true troy weight is - lb v oz

    I was under the impression that 1 troy lb = 12 troy oz

    Yet I notice that Apmex are adverting a 1/2 lb ASE as being 7+ oz

    So I'm just seeking clarification
     
    argento, Sep 17, 2012
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  2. RMP

    RMP New Member

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    1 lb = 16 oz
    1 troy lb = 12 troy oz

    Edit:

    Also,

    1 oz Troy = 1.0971428 oz
    0.91145834 troy oz = 1 oz
     
    RMP, Sep 17, 2012
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  3. Au-mageddon

    Au-mageddon Active Member

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    1 lb = 16 oz = 16/1.0971428 ozt = 14.58 ozt

    which is most likely why they were saying 0.5 lb = 7+ ozt
     
    Au-mageddon, Sep 17, 2012
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  4. goldpelican

    goldpelican Administrator Staff Member

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    There was a weird generic 1/2lb round a few years ago that came out with the wrong lb being used on it.
     
    goldpelican, Sep 17, 2012
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  5. 1for1

    1for1 Well-Known Member

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    I have a giant half pound flying eagle/ morgan mint from the morgan mint.. think its 8 troy oz -- something about it not weighing half a pound.

    1for1
     
    1for1, Sep 17, 2012
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  6. argento

    argento Well-Known Member Silver Stacker

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    Thanks guys.

    Based on the replies - it would appear that I'm not the only one who's confused.

    So far we have
    1 troy lb = 12 troy oz
    1 troy ib = 14 troy oz
    1 troy lb = 16 troy oz

    Does anyone have a 1lb round that they can check on their scales.
    My scales are too small to check mine.
     
    argento, Sep 17, 2012
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  7. bordsilver

    bordsilver Well-Known Member Silver Stacker

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    No, no troy pounds and troy ounces are different to common pounds and ounces used for normal reporting of masses (which technically are referred to as "avdp" pounds and "avdp" ounces - but the avdp is rarely mentioned).

    According to my conversion software:
    1 troy pound = 12 troy oz
    1 troy pound = 13.16571 oz

    In the avdp (i.e. avoirdupois system, which is the standard for general mass):
    1 pound = 16 oz
    1 pound = 14.58333 troy oz

    And, for completeness:
    1 troy oz = 1.09143 oz

    So, to correct your summary:
    1 troy lb = 12 troy oz
    1 (avdp) lb = 14.58333 troy oz
    1 (avdp) lb = 16 (avdp) oz
     
    bordsilver, Sep 17, 2012
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  8. goldpelican

    goldpelican Administrator Staff Member

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    So, putting the pieces together...

    Sounds like it is a 1/2 avoirdupois pound round.
     
    goldpelican, Sep 17, 2012
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  9. Eureka Moments

    Eureka Moments Well-Known Member Silver Stacker

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    Ive got a half troy pound ASE. I will weigh it in the various modes on my scales and supply the readings.

    The COA says it contains "2880 grains of silver" if thats any help?
     
    Eureka Moments, Sep 17, 2012
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  10. bordsilver

    bordsilver Well-Known Member Silver Stacker

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    Yes, that helps.

    There are 5,760 grains in a troy pound - so half a troy pound = 2,880 grains.

    2,880 grains = 6 troy ounces (exactly since 12 per full troy lb) or 6.582857 (avdp) ounces.

    Unfortunately though that would indicate they are using troy pounds rather than avdp pounds so means that there isn't any way that it can be 7+ ounces [EDIT - Unless as GP said, there were some funny ones in the wrong pounds from a few years ago].

    Since precious metals are typically in troy weights, it would seem to make sense for a half pound silver ASE being in troy lb's.

    [For completeness, 7,000 grains = 1 (avdp) pound. There is no such thing as a "troy grain" thank goodness.]
     
    bordsilver, Sep 17, 2012
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  11. argento

    argento Well-Known Member Silver Stacker

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    I appreciate you taking the time and look forward to seeing your results
     
    argento, Sep 17, 2012
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  12. 1for1

    1for1 Well-Known Member

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    Hi,

    My half pound flying eagle walking liberty washington mint heavy gold plated silver medallion is 1/2 troy ounce silver.. i have since thought the heavy gold plating was the differential.. this was the early 80's.. but i kinda doubt that it would be that laden with gold.

    i can weigh and check my COA this evening..

    RE: ADV ounce.. i have never seen gold/silver in ADV so that would be highly irregular (totally wrong)

    1for1
     
    1for1, Sep 17, 2012
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  13. trew

    trew Active Member Silver Stacker

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    Aaarrrgggghhhh why can't the USA just go metric like the rest of the world and then we won't have any of this kind of confusion
     
    trew, Sep 17, 2012
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  14. Eureka Moments

    Eureka Moments Well-Known Member Silver Stacker

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    Give 'em a troy oz and they'll take an avoirdupois pound. :lol:
     
    Eureka Moments, Sep 17, 2012
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  15. nasa

    nasa New Member

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    Ok Guys to save you all this trouble in the future.
    Here it is.
    .
    edit - no copyright violations/software license sharing please
     
    nasa, Sep 17, 2012
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  16. willy

    willy New Member

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    Mate.. you do realise that this particular program is shareware
    & defeating someones IP with a key-generator is, at the very least.. not cool..

    :/
     
    willy, Sep 17, 2012
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