How to Convert 400 Grams to Cups

A gram is a unit of measurement in the metric system that measures weight in non-liquid ingredients. A cup is a unit of measurement in the American or English system that measures volume. You may need to convert grams to cups if you are trying to recreate a foreign recipe or a science experiment. The successful conversion of these measurements requires basic math skills and a conversion table.

Instructions

1

Find a conversion table that converts basic measurements from the metric system into the English system.

2

Remember that the weight of a substance in grams varies according to its density. Refer to the conversion table to find the correct conversion if you are using a specific substance. As a general rule, 28.4 grams equals 1 ounce. Divide 1 by 28.4 to determine that 1 gram equals 0.035 ounce.

3

Change the weight in grams to ounces by multiplying the number of grams by 0.035 ounce. Multiply 400 grams by 0.035 ounce to equal 14 ounces. You now know that 400 grams equal 14 ounces.

4

Convert the number of ounces to cups. Since 1 cup is equal to 8 ounces, you will divide the number of ounces by 8 to determine the number of cups. Divide 14 ounces by 8 ounces to get 1.75 cups. Convert 0.75 to a fraction by placing it over 100 so it looks like 75/100. Divide each number in the fraction by 25 to reduce it to 3/4. The result is that 14 ounces equal 1 3/4 cup, or 400 grams equal 1 3/4 cup.