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Gram Short Form is GM
Gram short form is gm. Grams are used to measure the mass of substances, such as foodstuffs and pharmaceutical products, as well as metals and stones. One gram is equal to the mass of one-thousandth of a kilogram. One gram is approximately a third of the weight of a piece of lead. For example, one thousand grams is equal to about one-tenth of a kilogram. It is used to measure the standard mass of a substance, such as for recipes.
The Metric System
The metric system is used throughout the world, with some countries replacing the imperial measurement units with metrics. The metric system is a system of measurement based on the gram and centimetre. The basic unit in the metric system is the gram, which is equal to 1,000 milligrams or exactly one-tenth of a kilogram. There are 1,000 millimetres in a meter and there are 1,000 seconds in a minute.