One gram is one-thousandth of a kilogram. A kilogram is defined as the mass of a particular cylinder made out of iridium and platinum. This cylinder is kept in Sevres, France.
One gram is equal to 0.0353 ounces. A gram of sugar is approximately 1/4 teaspoon of sugar. A regular paper clip weighs about 1 gram.
The gram and kilogram are units of mass in the metric system of measurement. The metric system was invented in France in 1799. It was improved in 1960 and named the System of International Units, or SI. The SI system is used in most countries, with the United States being one of the exceptions..