Welcome to cups to grams, our page made to answer the question how much is a cup in grams? If you have been looking for cups in grams or how many grams is a cup then you are right here, too. Converting cups to grams is changing the volume (V) in a certain cup size to the mass (m) in grams using the formula m = V * ρ. The letter rho (ρ) stands for the density, a characteristic value for a substance, which depends on the pressure and temperature conditions.
The difficulty with cups into grams is that there are a number of varying cups sizes in use, all having a different capacity in ml. So in order to convert cup to grams we need to know whether customary, imperial, legal or Canadian cups are meant. If you are using a standardized measuring cup, then the question is how it calibrated. Keep reading to learn all about cups to g, and make sure to check out our cups to grams converter.
Convert Cups to Grams
In order to convert cups to grams we first need to determine what cup size you use:
US legal cup = 240 milliliters
Metric cup = 250 milliliters
US customary cup = 236.5882365 milliliters
Canadian cup = 227.3045 milliliters
Imperial cup = 284.131 milliliters
The most prevalent is the Unites States cup known as legal, because nutrition is by law labelled in cups with a capacity of 240 ml. This cup size is only slightly more than the US customary cup, 1.4% to be exactly. Now lets look at grams in a cup:
Water at the temperature of 4° Celsius and at sea level has a density value really close to 1 when measured in g/cm3, which is equal to g/ml, that is grams per milliliter. For recipes in the kitchen, we can therefore conclude that for water the cup to gram conversion is as follows:
US legal cup = 240 grams
Metric cup = 250 grams
US customary cup = 236.5882365 grams
Canadian cup = 227.3045 grams
Imperial cup = 284.131 grams
But what about how many grams in a cup of flour or sugar for example? Well, for any substance we need to know the mass density as well the capacity of the cup under consideration. Only then can we use the formula
m = cups * ρ * cup size
ρ in grams per cm3 or grams per milliliter. Other units should be converted first, or head straightaway to our calculator in the next section. It can handle input in lots of units.
For example. the cup to grams conversion for sugar with a density of 0.785 g/ml is:
m = 1 cup * 0.785 g/ml * 240 ml = 305.73 grams.
You can find almost all densities in the search engine of your preference by typing the substance’s name followed by the word density, or vice versa. We recommend you use the average of a range you find for each product, as the value for ρ depends on the quality, brand, kind etc of the ingredient in addition to the pressure and temperature.
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Cups to Grams Conversion
By reading so far you have learned what is one cup in grams. How many grams is in a cup depends on capacity of the measuring plastic, the substance as well as the temperature and pressure conditions. We have created this page to clarify what is a cup in grams and hope you we have met our goal explaining the volume to mass conversion from cup to grams.
Unless you are really into math we recommend using our calculator when it comes to the cups to grams conversion and go with legal cups if you don’t know in which unit your plastic has been calibrated. On our page grams to cups you can find additional information on the cups used in the different countries, along with links to further readings.
We sum cups to gram up with the following image:
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