One gram is equal to 0.0353 of an ounce. One ounce is a larger unit of measurement than 1 gram, and as such, only a fraction of an ounce is in a gram. Conversely, one ounce is equal to 28.35 grams.
There are 16 ounces in a pound, and there are 1,000 grams in a kilogram. The gram and kilogram are used to measure mass in the metric system, and the metric system is used in most of the world. The United States, Canada and the United Kingdom are the notable exceptions, as these countries most frequently use ounces and pounds to measure mass. The metric system was constructed and published in France in 1799.