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Avoirdupois ounces vs. Troy ounces
piecesofme
Posts: 6,669 ✭✭✭
I am selling these on the BST forum and was getting alot of angry people yelling at me in pm's saying that I was trying to cheat people ( to put it mildly).
80.5 ty. oz.'s in big, odd weight rounds
But after a couple of people forwarded me this info., it appears that those angry people didn't educate themself very well before ranting and raving and accussing me of blatantly false things.
I'm posting it here in case you were not aware and so there is a reference to pull up here for someone else who might run into this. A big thank you go out to OffMetal & cajun. 2 people who obviously took the time to do a little research.
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1 troy pound = 12 troy ounces = 373 grams
1 avoirdupois pound = 453 grams = 14.566 troy ounces
Avoirdupois weights
Here in the USA we often use the avoirdupois ounce for everyday weighing. Every time you step on the scale at home, or weight food found in the grocery, you use the avoirdupois ounce weight system. There are 16 avoirdupois ounces in a pound.
1 avoirdupois ounce = 437.5 grains, or 28.35 grams. 1 avoirdupois pound contains 16 (avoirdupois) ounces. This makes an Avoirdupois pound equal to about 453.6 grams, or the equivalent of 14.583 "troy ounces".
So what do you get when you buy an ounce ?
The troy ounce is heavier than the typical grocery store (avoirdupois) ounce used in the USA. When you purchase a 1 ounce silver or gold coin, you are receiving a "troy" ounce. If you put that same 1 troy oz. coin on a grocery store scale you will find that it weighs about 10% more than the food (avoirdupois) ounce you are familiar with. It will weigh about 1.1 avoirdupois ounces. A troy ounce is equivalent to about 31.1 grams.
Separately, the troy weight system has it's own definition of a "troy" pound. A "troy pound" contains 12 troy ounces or 373.24 grams (which is over 13 avoirdupois ounces).
It is thought that the troy ounce was named after a weight system used in Troyes France during the Middle Ages.
Troy weights
One troy ounce = 480 grains, or 31.10 grams.
There are also 20 pennyweights to a troy ounce.
A troy pound contains 12 troy ounces (over 13 avoirdupois ounces) and is equivalent to 373.24 grams. 32.15 troy ounces = 1 kilogram.
Consequently, a grocery store pound which weighs 16 avoirdupois ounces (or 453.59 grams) will contain about 14.58 troy ounces.
Perhaps an easy way to compare Troy ounces versus avoirdupois ounces is to look at how they weigh using the metric system
80.5 ty. oz.'s in big, odd weight rounds
But after a couple of people forwarded me this info., it appears that those angry people didn't educate themself very well before ranting and raving and accussing me of blatantly false things.
I'm posting it here in case you were not aware and so there is a reference to pull up here for someone else who might run into this. A big thank you go out to OffMetal & cajun. 2 people who obviously took the time to do a little research.
------------------------------------------------------------------------------------------------------------------------------------------------------------------
1 troy pound = 12 troy ounces = 373 grams
1 avoirdupois pound = 453 grams = 14.566 troy ounces
Avoirdupois weights
Here in the USA we often use the avoirdupois ounce for everyday weighing. Every time you step on the scale at home, or weight food found in the grocery, you use the avoirdupois ounce weight system. There are 16 avoirdupois ounces in a pound.
1 avoirdupois ounce = 437.5 grains, or 28.35 grams. 1 avoirdupois pound contains 16 (avoirdupois) ounces. This makes an Avoirdupois pound equal to about 453.6 grams, or the equivalent of 14.583 "troy ounces".
So what do you get when you buy an ounce ?
The troy ounce is heavier than the typical grocery store (avoirdupois) ounce used in the USA. When you purchase a 1 ounce silver or gold coin, you are receiving a "troy" ounce. If you put that same 1 troy oz. coin on a grocery store scale you will find that it weighs about 10% more than the food (avoirdupois) ounce you are familiar with. It will weigh about 1.1 avoirdupois ounces. A troy ounce is equivalent to about 31.1 grams.
Separately, the troy weight system has it's own definition of a "troy" pound. A "troy pound" contains 12 troy ounces or 373.24 grams (which is over 13 avoirdupois ounces).
It is thought that the troy ounce was named after a weight system used in Troyes France during the Middle Ages.
Troy weights
One troy ounce = 480 grains, or 31.10 grams.
There are also 20 pennyweights to a troy ounce.
A troy pound contains 12 troy ounces (over 13 avoirdupois ounces) and is equivalent to 373.24 grams. 32.15 troy ounces = 1 kilogram.
Consequently, a grocery store pound which weighs 16 avoirdupois ounces (or 453.59 grams) will contain about 14.58 troy ounces.
Perhaps an easy way to compare Troy ounces versus avoirdupois ounces is to look at how they weigh using the metric system
To forgive is to free a prisoner, and to discover that prisoner was you.
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(x2,Meltdown),cajun,Swampboy,SeaEagleCoins,InYHWHWeTrust, bstat1020,Spooly,timrutnat,oilstates200, vpr, guitarwes,
mariner67, and Mikes coins
The issue has been posted a couple times. It is good to have a reminder though. I think Weiss even posted a link on how to pronounce it correctly?
Bstat
16 postal ounces is equal to 14.57 troy ounces (16x.911)
bob
<< <i>Just weigh it on your postal scale and multiply the result by .911
16 postal ounces is equal to 14.57 troy ounces (16x.911)
bob >>
Exactly correct. If someone doesn't say troy ounces, I automatically multiply the ounces by .911 to be safe. The only time it is an issue is if they talk about pounds. Then it is difficult to know for sure.
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Successful transactions on the BST boards with rtimmer, coincoins, gerard, tincup, tjm965, MMR, mission16, dirtygoldman, AUandAG, deadmunny, thedutymon, leadoff4, Kid4HOF03, BRI2327, colebear, mcholke, rpcolettrane, rockdjrw, publius, quik, kalinefan, Allen, JackWESQ, CON40, Griffeyfan2430, blue227, Tiggs2012, ndleo, CDsNuts, ve3rules, doh, MurphDawg, tennessebanker, and gene1978.
Yep, that's why I photgraphed them on a scale clearly showing that they were being weighed using the ty. oz. mode...and yet I still had some profanity laced pm's sent my way.
I figure that posting this will help someone else down the line being that I was apparently being used as a scapegoat.
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Successful transactions on the BST boards with rtimmer, coincoins, gerard, tincup, tjm965, MMR, mission16, dirtygoldman, AUandAG, deadmunny, thedutymon, leadoff4, Kid4HOF03, BRI2327, colebear, mcholke, rpcolettrane, rockdjrw, publius, quik, kalinefan, Allen, JackWESQ, CON40, Griffeyfan2430, blue227, Tiggs2012, ndleo, CDsNuts, ve3rules, doh, MurphDawg, tennessebanker, and gene1978.
(x2,Meltdown),cajun,Swampboy,SeaEagleCoins,InYHWHWeTrust, bstat1020,Spooly,timrutnat,oilstates200, vpr, guitarwes,
mariner67, and Mikes coins
Yeah, dont you love it when people get all worked up and accuse you of things that are completely false and the whole basis is over something that they dont even know what they are talking about...and then when proven wrong, dont have the nads to apologize. True colors indeed!
I don't know how I could've been anymore upfront about the items and their "odd" weights. No matter now because all but the 10 oz.'er have sold. Thanks to all for your input on this and I hope this thread will help someone else down the line.
Proud recipient of two "You Suck" awards