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Convert Ounces To Grams

Please enter a value below to convert ounces to grams:

In order to do a reverse conversion from grams to ounces clear values in the above fields and input the value in the “Grams” field or go to grams to ounces converter page.

Facts about Ounce

Basic facts: An ounce is a unit of mass in the US customary and imperial systems of measurement. Its symbol is [oz]. The avoirdupois ounce, which is the common ounce, is defined as precisely 28.349523125 grams and is equal to one-sixteenth of an avoirdupois pound.

History: The term ounce originates from the Roman uncia, which means a [twelfth part] and the use of a standardized copper bar which defined the Roman pound as well as the foot. The copper bar was divided into twelve identical parts, called unciae. This relationship between the Roman pound and foot ultimately contributed to the uncia being the basis of both the modern inch and the common ounce. Throughout history, the ounce has been used as a standard of mass for various applications and with different definitions. Examples include the French ounce (30.59g), Spanish ounce (28.75g), and the Dutch metric ounce (100g) among others. In 1959, the current definition of the ounce, the international avoirdupois ounce was adopted.

Use: In the US customary system of measurement, an ounce is still a standard unit of mass. It is mainly used in the United States for food portions, measuring packaged food products, and postal items, among other things. In some other countries around the world that have roots in British history and culture, the ounce is still used. The United Kingdom no longer officially uses the ounce due to metrication. It is, however, still used in some settings (restaurants) in the United Kingdom.

Facts about Gram

Basic facts: A gram is a unit of mass in the SI [International System of Units]. Its symbol is [g]. A kilogram is the base of the definition of a gram, where a gram is one-thousandth of a kilogram, the SI base unit of mass. The definition of the kilogram is no longer based on the international prototype since 2019. It is rather based on Planck’s constant, h, together with the new definitions of the second and the meter.

History: Initially, a gram was defined as the absolute weight of pure water in a cubic centimeter at the temperature of melting ice [later 4 °C]. Until the widespread adoption of SI, which uses kilograms as the base unit of mass, the gram used to be a fundamental unit of mass as part of centimeter-gram-second systems of units. Later, the gram was redefined as one-thousandth of a kilogram, the SI [meter-kilogram-second system of units] base unit of mass.

Use: In every life as well as scientific context, the gram is widely used. For instance, the gram is commonly used to measure non-liquid ingredients used for groceries or cooking. Standards often require the relative contents to be stated per 100 grams of the product on the nutrition labels of food products.

How many grams in a ounce

1 ounce is equivalent to 28.349523125 grams. Use 28.349523125 as the factor to convert ounces to grams. Below find some popular ounces to grams conversion questions:

  • How many grams in 2 ounces?  2 ounces x 28.349523125 = 56.69904625 number grams
  • How many grams in 3 ounces?  3 ounces x 28.349523125 = 85.04856938 number grams
  • How many grams in 5 ounces?  5 ounces x 28.349523125 = 141.7476156 number grams
  • How many grams in 10 ounces? 10 ounces x 28.349523125 = 283.4952313 number grams
  • How many grams in 20 ounces? 20 ounces x 28.349523125 = 566.9904625 number grams
  • How many grams in 50 ounces? 50 ounces x 28.349523125 = 1417.476156 number grams
  • How many grams in 100 ounces? 100 ounces x 28.349523125 = 2834.952313 number grams
  • How many grams in 1000 ounces? 1000 ounces x 28.349523125 = 28349.52313 number grams

Ounces to Grams Conversion Chart

OuncesGramsOuncesGramsOuncesGramsOuncesGrams
128.3495231326737.0876013511445.825679762154.563758
256.6990462527765.4371244521474.175203772182.913281
385.0485693828793.7866475531502.524726782211.262804
4113.398092529822.1361706541530.874249792239.612327
5141.747615630850.4856938551559.223772802267.96185
6170.097138831878.8352169561587.573295812296.311373
7198.446661932907.18474571615.922818822324.660896
8226.79618533935.5342631581644.272341832353.010419
9255.145708134963.8837863591672.621864842381.359943
10283.495231335992.2333094601700.971388852409.709466
11311.8447544361020.582833611729.320911862438.058989
12340.1942775371048.932356621757.670434872466.408512
13368.5438006381077.281879631786.019957882494.758035
14396.8933238391105.631402641814.36948892523.107558
15425.2428469401133.980925651842.719003902551.457081
16453.59237411162.330448661871.068526912579.806604
17481.9418931421190.679971671899.418049922608.156128
18510.2914163431219.029494681927.767573932636.505651
19538.6409394441247.379018691956.117096942664.855174
20566.9904625451275.728541701984.466619952693.204697
21595.3399856461304.078064712012.816142962721.55422
22623.6895088471332.427587722041.165665972749.903743
23652.0390319481360.77711732069.515188982778.253266
24680.388555491389.126633742097.864711992806.602789
25708.7380781501417.476156752126.2142341002834.952313

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