Q:

# How many grams are in an ounce?

A:

There are precisely 28.3495231 grams in one ounce. This number is commonly rounded to 28 for easier conversions. The gram is the base unit of mass or weight in the metric system, and the ounce is a unit of weight in the U.S. customary system.

## Keep Learning

To convert a measurement in ounces to an approximate number of grams, multiply it by the factor 28. Conversely, to convert a measurement in grams to ounces, divide it by the divisor 28. Although ounces are the preferred measurement in the United States, grams are used by most of the world and in all scientific applications.

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## Related Questions

• A:

There are 7.09 grams in one-quarter of an international avoirdupois ounce, which is the most commonly used measure of ounces, as of 2014. There are 7.78 grams in one-quarter of a troy ounce, which is commonly used for measuring the mass of precious metals.

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• A:

There are 28.349 grams per ounce. An ounce is one-sixteenth of a pound, while a gram is one-thousandth of a kilogram. There are 2.2 kilograms per pound; to convert ounces to grams, divide the ounces by 0.035274.

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• A:

One ounce is equal to 28.3 grams. Therefore, half of an ounce is equal to approximately 14.2 grams. This is assuming the ounce is for solid mass measurement, rather than the fluid ounce for liquid.