Conversion formula exactly how to transform 128 grams come ounces?

We recognize (by definition) that:1⁢g≈0.035273962⁢oz

We can set up a ratio to deal with for the variety of ounces.

You are watching: 128 grams equals how many ounces


Now, us cross multiply to resolve for our unknown x:




Conversion in the contrary direction

The inverse of the conversion factor is that 1 oz is same to 0.221480649414063 time 128 grams.

It can additionally be express as: 128 grams is equal to 1 0.221480649414063 ounces.


An almost right numerical an outcome would be: one hundred and also twenty-eight grams is about four suggest five one ounces, or alternatively, a oz is about zero allude two two times one hundred and twenty-eight grams.

Units involved

This is just how the devices in this conversion room defined:


The gram is a metric device unit the mass. Originally characterized as the pure weight that a volume that pure water equal to the cube the the hundredth component of a metre, and at the temperature of melt ice. However, a gram is now characterized as one one-thousandth that the SI basic unit, the kilogram, or 1×10−3 kg, which itself is currently defined, not in terms of grams, yet as being same to the massive of a physical prototype of a details alloy preserved locked up and also preserved by the international Bureau of Weights and also Measures. This is in the tradition by which many customary local reference traditional stones, lengths (objects) and weights were forced to periodically experience comparison with the official countries standard referents, usually v a particular periodicity characterized by the nations statuate laws.

Wikipedia page of grams


The ounce (abbreviated oz) is a unit that mass used in many British acquired customary solution of measurement. The is many pervasive in the retail sale of groceries in the united States, yet is also used in numerous other matters of domestic and international trade between imperial or customary measurement thrust countries. Comparable customary uses include recipes in cookbooks and also sales of mass dry goods. Whilst various definitions have been provided throughout history, two continue to be in common use, the avoirdupois oz equal to around 28.3 grams and also the trojan ounce of around 31.1 grams. The avoirdupois oz is widely supplied as part of the United states customary and also British imperial systems, yet the trojan ounce is now only frequently used for the fixed of precious steels such as gold, silver, platinum, palladium, rhodium, etc..

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Wikipedia web page of ounces


<1> The precision is 15 far-ranging digits (fourteen number to the right of the decimal point).