Q:

# How many grams are there in 1 kilogram?

A:

One kilogram equals 1,000 grams. Both kilograms and grams are measures of mass in the metric system, so they are based on units of 10.

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For most units of measurement in the metric system, the base unit is the one without a prefix, such as "meter." However, in mass, the base unit is the kilogram. The weight of a kilogram is based on 1 cubic decimeter of water, though it has been standardized through the international prototype of the kilogram (IPK) since 1889. The prototype, which is kept by the International Bureau of Weights and Measures, is made of plutonium and iridium.

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One ounce equals 28.3495231 grams, based on the AskNumbers.com conversion chart. For a more precise conversion, 1 ounce converts to 28.349523125 grams, according to ConvertUnits.com.

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A cup measures volume and a gram measures weight, therefore the number of grams cannot be given because it is entirely dependent on what is in the cup. A cup of something heavy weighs more in grams than a cup of something light.

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One pound is equal to approximately 453.6 grams. Conversely, 1 gram is equal to 0.0022 pounds. The pound is a basic unit of weight in non-scientific instances or mass in scientific circumstances in the imperial system, which is the system primarily used by the United States.