金衡制 Troy Weights

1 英镑(pound,US,UK)[lb,lbs] = 453.59237 克(gram) [g]

1 盎司(ounce) [oz] = 28.349523 克(gram) [g]

1 金衡盎司(troy ounce) = 31.103477 克(gram) [g]

1 长吨 (英吨,ton) = 1016.046909 公斤(kilogram) [kg]

1 短吨 (美吨,ton) = 907.18474 公斤(kilogram) [kg]

1 inch = 2.54 cm

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金衡制 

即Troy Weights。是一套专门用于衡量黄金重量的单位体系。主要在期货运作或金融工具交易时使用，日常生活中并不常用。

换算方式如下：

24格雷因=1本尼威特

20 pennyweights 本尼威特（英美金衡单位，简写dwt 或 pwt）= 1 ounce 盎司

12 ounce 金衡制盎司 = 1lbs 金衡制磅

1 troy ounce 金衡制盎司 = 31.103 grams 克

1 troy ounce 金衡制盎司 = 0.031103 kilogram 千克

1 troy pound 金衡制磅 = 0.37324 kilogram 千克 = 373.24 grams 克

1 kilogram 千克 = 32.1507 troy ounce 金衡制盎司

1 tonne 吨 = 32150.7 troy ounces 金衡制盎司

troy  [trɔɪ]n. 

金衡制(用于称量贵重金属和宝石) 

troy ounce  [trɔɪ aʊns] 

金衡盎司;金衡制盎司;金衡;金衡英镑;盎司 

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What is a Troy Ounce?

First-time precious metals buyers are often confused by the difference between a troy ounce (ozt) and a “regular” ounce, especially when their 100 oz silver bar actually weighs 6.85 lbs on the scale instead of 6.25 lbs. Did they receive more silver than they paid for? The answer lies in an antiquated system of measurement still used today for precious metals known as troy weights.

But first: what exactly is a “regular” ounce? We remember from grade-school that an ounce is 1/16 of a pound, and when we visit the grocery store and ask for half-a-pound of cheese, we expect to receive eight ounces in return. This extremely common unit of measure is known as an avoirdupois ounce, and it is used for measurements not involving gold, silver, platinum, or gunpowder.

The troy ounce was retained from the Roman system for these four commodities in order to preserve the standards previously set across time, as the two-system standard would have created problems for the monetary system of the day.

A troy ounce is 1/12 of a troy pound (a troy pound is actually lighter than an avoirdupois pound). The troy ounce (480 grains) is heavier than the avoirdupois ounce (437.5 grains). A grain is 64.79891 milligrams (mg); therefore one troy ounce is 31.1034768 grams (g). This measures out to be about 10 percent more than the avoirdupois ounce, which is 28.349523125 g.

1 troy ounce = 1.09714286 ounces (avoirdupois)

Troy ounce to metric metric measurements

As mentioned above, one troy ounce is equal to 31.1034768 grams. Therefore, one kilogram is equal to 32.1507 troy ounces.