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. Thus, the volume in cups is equal to the weight in grams divided by 236.5882 times the density (in g/mL) of the ingredient, substance, or material.Ĭups = 500 g / 236.5882 × 0.7 g/mL = 3.0191 c When to Convert Grams to Cups 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: 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. In cooking disciplines such as baking, where accurate measurements are important, ingredients are instead measured by weight.Ethan has a PhD in astrophysics and is currently a satellite imaging scientist. Using a measuring cup to measure bulk foods which can be compressed to a variable degree such as chopped vegetables or shredded cheese leads to large measurement uncertainties. For example, 1 cup of all-purpose flour sifted into a cup and leveled weighs about 100 grams (3½ oz), whereas 1 cup of all-purpose flour scooped from its container and leveled weighs about 140 grams (5 oz). Others, notably flour, are more variable. Many dry ingredients, such as granulated sugar, are not very compressible, so volume measures are consistent. There may also be scales for the approximate weight for particular substances, such as flour and sugar.įor dry measure A set of plastic measuring cups which usually include one full cup measure, half a cup and one third of a cup Sometimes multiples of teaspoons and tablespoons are included. Liquid measure cups tend to be microwave safe for heating and clear to more easily judge the meniscus. Dry measure cups are distinguished from liquid measure cups in that they are meant to be filled to the top so that excess may be scraped off and shallow for easy cleaning. The units may be milliliters or fractions of a liter, or the cup (unit, with varying definitions) with its fractions (typically 1/4, 1/3, 1/2, 2/3, and 3/4), pints, and often fluid ounces. Dry measure cups without a scale are sometimes used, in sets typically of 1/4, 1/3, 1/2, and 1 cup. They usually have scale markings at different heights: the substance being measured is added to the cup until it reaches the wanted level. 4 cups = 2 pints = 1 quart), though larger sizes are also available for commercial use. Measuring cups usually have capacities from 250 mL (approx. Transparent (or translucent) cups can be read from an external scale metal ones only from a dipstick or scale marked on the inside.Ĭapacity and scale A mug that has markings up to 350 ml Measuring cups may be made of plastic, glass, or metal. The cup will usually have a scale marked in cups and fractions of a cup, and often with fluid measure and weight of a selection of dry foodstuffs. Measuring cups are also used to measure washing powder, liquid detergents and bleach for clothes washing. Kitchen utensil to measure volume of cooking ingredients A simple plastic measuring cup, capable of holding the volume one cup.Ī measuring cup is a kitchen utensil used primarily to measure the volume of liquid or bulk solid cooking ingredients such as flour and sugar, especially for volumes from about 50 mL (approx.
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