what is gm in measurement

In measurement, "gm" is an abbreviation for gram. A gram is a unit of measurement for weight and mass in the metric system. In weight, a gram is equal to a thousandth of a kilogram, and in mass, a gram is equal to a thousandth of a liter (one cubic centimeter) of water at 4 degrees centigrade. The gram is the cgs (centimeter/gram/second) unit of mass. The official International System of Units abbreviation for gram is "g," but "gm" has also been used.