Ounces to grams conversion factors are listed below (for both avoirdupois and troy system of weights). To find out how many grams in an ounce, multiply by the conversion factors or instead, use the converter if the conversion is from avoirdupois ounces. If scroll down, you may also create and print your own custom conversion table create your table.
1 Ounce = 28.3495231 Grams
1 Troy Ounce = 31.1034768 Grams
For example, to find out how many grams there are in 6 ounces (6 oz to grams), multiply the ounce value by the conversion factor, 6 * 28.3495231 = 170.0971386 grams.
Ounce is a unit of mass (weight) in United States customary and imperial measurement systems. The international avoirdupois ounce is commonly used daily basis and the troy ounce is an old weight unit and still used for the measurement of precious metals, gemstones, silver etc. The abbreviation is "oz".
Gram is a unit of mass in metric system and defined to be the 1/1000 of a kilogram which is the metric base unit of mass. It's used commonly in cooking recipes and drug measurements. There are 28.3495231 grams in an ounce and 31.1034768 grams in a troy ounce. The abbreviation is "g".