However, in a reversal of reference and defined units, a gram is now defined as one one-thousandth of the SI base unit, the kilogram, or 1×10

^{−}^{3}**kg**, which itself is now defined, not in terms of grams, but as being equal to the mass of a physical prototype of a specific alloy kept locked up and preserved by theFurthermore, what is a gram in standard measurement?

**Gram**(g), also spelled gramme, unit of mass or weight that is used especially in the centimetre-

**gram**-second system of

**measurement**(see International System of Units). One

**gram**is equal to 0.001 kg.

Is a gram a SI unit?

"Kilo" the

**SI**prefix for 1000 or 10^{3}. Names and symbols for decimal multiples and submultiples of the**unit**of mass are formed by attaching prefix names to the**unit**name "**gram**," and prefix symbols to the**unit**symbol "g." The**SI**base**unit**of mass, the kilogram, is the last remaining physical artifact.What is GM unit of measurement?

**gm**(gram): The abbreviation

**gm**stands for gram, a unit of

**measurement**of weight and mass in the metric system. In weight, a gram is equal to a thousandth of a kilogram. In mass, a gram is equal to a thousandth of a liter (one cubic centimeter) of water at 4 degrees centigrade.