Three ounces equals 85 grammes, or approximately 0.1 pound. This is a weight measurement, often known as a dry measurement. Three fluid ounces are equivalent to 90 millilitres or six teaspoons. This is a volume measurement, often known as a liquid measurement.
Cups can also be converted from fluid ounces. One cup is equivalent to eight fluid ounces (half a pint), hence three ounces equals one-eighth of a cup. Also, for dry ingredients, 3 ounces might correspond to various weights, depending on the substance being measured. For instance, 3 ounces of flour or powdered sugar would weigh slightly less than 3 ounces of a sugar with a higher density, such as brown sugar.