A gram weighs 1 gram on a scale. A gram is a unit of mass equal to one-thousandth of a kilogram. If the scale is using other units, a gram weighs 0.0357 ounces.
The kilogram and gram are units of mass in the metric system. The metric system is used as the system of measurements worldwide except in the United States, Liberia and Myanmar. In the United States, the units of weight, which are approximately the same as units of mass, are the pound and ounce. An ounce weighs 28.35 grams, and there are 16 ounces in 1 pound. Therefore 1 pound weighs 453.6 grams.