Online Calculator – Grams to Cups

Grams to Cups Calculator

The grams to cups calculator will help you in your daily life. Here we present the conversion for the most popular kitchen ingredients. If you ever wondered how many grams are in a cup or how to convert 100 grams to cups, you are in the right place.

How to convert grams to cups and cups to grams?

General equations look as follows:

  • weight = cups * cup size * density
  • cups = weight / (cup size * density)

As you can see in the formulas above, providing only the amount of grams is not enough to convert cups to grams. We need to know what is the density of the ingredient which we want to convert. To make it more complicated, there are a couple of different types of cups, so we need to know what is our recipe’s country of origin.

Various cups sizes

The most often used cup volume is the US customary cup with its 236.59 mL of volume. If you have a recipe from the USA, you may be pretty sure that it’s what the authors meant. There is also another cup type in the USA, and it’s called a legal cup. It is used in nutrition labeling, and it measures 240 mL. Other countries occasionally use cup unit and the recipes normally weigh non-liquid ingredients in grams rather than measuring volume. UK imperial cup was used in pre-1970 recipes. Sometimes the metric cup (250 mL) is still used in the UK, Australia, New Zealand, Canada and South Africa.


Cup type Volume
US customary cups 236.59 mL
US legal cup 240 mL
UK, AU, NZ, CA, ZA metric cup 250 mL
UK imperial cup (pre-1970) 284.13 mL
Japanese cup 200 mL (traditional – 180.4 mL)
Latin America 200 mL – 250 mL

How many grams in a cup of my product?

The weight of 1 cup is different for various ingredients because of its density. For example, if you want to convert 1 standard US cup of water into grams, you get exactly 236.59 g. However, 1 cup of salt weights around 287 g and 1 cup of wheat flour – only 141.6 g. Below we attach the density conversion table for most often used products:

Basic ingredients


Product Density Grams in 1 cup (US) 100 grams to cups (US)
Water 1000 236.59 0.42
Flour 600 141.60 0.71
Milk 1030 243.08 0.41
Sugar 845 199.42 0.50
Salt 1217 287.20 0.35
Honey 1420 335.12 0.30
Butter 911 215,00 0.47
Olive Oil 918 216.65 0.46
Rice (raw) 850 200.60 0.50
Oats 410 96.76 1.03



Product Density (kg/m3) Grams in 1 cup (US) 100 grams to cups (US)
Jam 1330 313.88 0.32
Nutella 1260 297.36 0.34
Maple syrup 1320 311.52 0.32
Cream, 38% fat 984 232.22 0.43
Cream, 13% fat 1013 239.07 0.42
Powder sugar 560 132.16 0.76
Flaked almonds 430 101.48 0.99
Cacao 520 122.72 0.82
Corn starch 520 153.40 0.65
Rye flour 520 158.12 0.63

Those values are only approximate and may be slightly different for your ingredient, as the density of the substance varies with pressure and temperature. Also, it is important how tightly the ingredient is packed into the cup.

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