A gram (spelled gramme in England) is a unit of weight/mass in the metric system. One gram is equal to about .035 ounces. This means that you need 28.3 grams to get one ounce. To help understand that better, there are 16 ounces in one pound. That means that you need 453.36 grams just to get one pound. The average small paperclip weighs about one gram. It takes 1000 grams to make one kilogram. Conversely, it takes 1000 milligrams to make one gram. One gram is equal to 0.035 ounces.
Grams are often used in medicine to administer the measure medication amounts. It is also the most commonly used measurement for non-liquid cooking and grocery ingredients. In the past, gram was commonly abbreviated as "gm." Other abbreviations include Gm, GM, gr, grm, gms, and grms. The preferred abbreviation today for gram is "g" as defined by the International Symbol of Units (SI). This is preceded by the number of grams and a space such as 250 g. The abbreviation “g” is used because serious medical errors can result from inaccurately converting grams to milligrams with other abbreviations (e.g.., gm for grams and mg for milligrams). Gram comes from the Latin word "gramma," meaning "small weight."