The gram, or gramme, is an SI unit of mass in the metric system. Keep reading to learn more about each unit of measure.Ī gram is a unit of mass equal to 1/1,000 of a kilogram or 0.035274 ounces, and is equivalent to the mass of one cubic centimeter, or one milliliter, of water. It is common to mix powdered chemicals with liquid, or aqueous, chemicals, and this is where it becomes very useful to convert between weights and volumes.
When performing chemical reactions by combining separate chemicals to produce a new chemical, one must know the exact amount of each chemical to add in order to maximize the yield of the reaction. When a scale is not available, a calculator like the one above is a good way to estimate the weight to volume conversion.įor cooking and baking ingredients, you can get more specific results using our butter, flour, and sugar conversion calculators.Īnother useful application of weight and volume conversions is chemistry. The best way to ensure an accurate conversion is to use a scale.
The density of dry ingredients can vary for a variety of reasons, such as compaction and clumping. Grams and cups are both commonly used to measure cooking ingredients.įor cooking applications, most chefs suggest measuring dry ingredients by weight rather than volume to improve accuracy in the measurements. If the density is given in grams per milliliter (g/mL), then first multiply the density by 236.5882 to convert to g/c.įor a density given in g/mL, you can use this simple formula to convert:Ĭups = 500 g / 236.5882 × 0.7 g/mL = 3.0191 c When to Convert Grams to Cups Note that in order for this to work, the density must be in grams per cup (g/c). To convert a measurement in grams to cups, divide the weight by the density of the ingredient or material.
Therefore, to convert between grams and cups of an ingredient or substance, we must either multiply or divide by its density, depending on which direction we are performing the conversion. In this case, we need to account for the density of the substance whenever we do a conversion. Since grams are a unit of mass and cups are a unit of volume, which are different physical quantities, we need to know one more physical quantity of the ingredient or substance to convert between them. He specializes in math, science, and astrophysics. Ethan has a PhD in astrophysics and is currently a satellite imaging scientist.
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