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How Many Grams in an Ounce

There are 28.3495231 grams of the metric system in one ounce of the British Imperial and US Standards for weights and measures.

1 ounce = 28.3495231 grams

1 troy ounce = 31.1034768 grams

Ounce (abbr. oz) is a widely-spread unit of mass or volume (fluid ounce), which is used in various systems and has several definitions. The most regular definition of this unit is equivalent to approximately 28 grams. There are 16 ounces in an avoirdupois pound. In 1958 the US (United States) and countries of the Commonwealth of Nations defined the mass of the international pound to be 0.453 592 37 kilograms. Since 1958, the international ounce is defined to be equal to about 28.349523 grams. The ounce is commonly used as a unit of mass in the US. While imperial units have been officially abolished in the UK, the ounce still remains as a unit of mass in some applications.

Ounces To Grams Chart

Ounce Gram
1 Ounce = 28.3495231 Gram
2 Ounce = 56.6990462 Gram
3 Ounce = 85.0485693 Gram
4 Ounce = 113.3980924 Gram
5 Ounce = 141.7476155 Gram
6 Ounce = 170.0971386 Gram
7 Ounce = 198.4466617 Gram
8 Ounce = 226.7961848 Gram
9 Ounce = 255.1457079 Gram
10 Ounce = 283.495231 Gram
11 Ounce = 311.8447541 Gram
12 Ounce = 340.1942772 Gram
13 Ounce = 368.5438003 Gram
14 Ounce = 396.8933234 Gram
15 Ounce = 425.2428465 Gram
16 Ounce = 453.5923696 Gram
17 Ounce = 481.9418927 Gram
18 Ounce = 510.2914158 Gram
19 Ounce = 538.6409389 Gram
20 Ounce = 566.990462  Gram
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