Grams to Cups Converter

Turn grams into cups (and cups into grams) for common baking and cooking ingredients. Pick the ingredient, because a cup of flour weighs much less than a cup of sugar.

Direction
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Cups (decimal)–
Tablespoons–
Teaspoons–
Milliliters–

Weights per cup are typical values. Your result can vary a little with how you fill the cup.

Why grams to cups depends on the ingredient

Grams measure weight and cups measure volume. A cup of honey is heavy because honey is dense, while a cup of cocoa powder is light and airy. So there is no single "grams per cup" number: you need to know what you are measuring. This converter uses typical weights per US cup for each ingredient.

Common ingredients: grams per cup

Ingredient1 cup1/2 cup100 g is about
All-purpose flour (spooned and leveled)120 g60 gabout 7/8 cup
Granulated sugar200 g100 g1/2 cup
Brown sugar (packed)213 g107 gabout 1/2 cup
Powdered sugar120 g60 gabout 7/8 cup
Butter227 g114 gabout 1/2 cup
Water237 g119 gabout 3/8 cup
Milk242 g121 gabout 3/8 cup
Rolled oats90 g45 g1 1/8 cups
Cocoa powder84 g42 gabout 1 1/4 cups
Honey336 g168 gabout 1/3 cup

How to measure flour correctly

  1. Fluff the flour in its bag or container with a spoon.
  2. Spoon it into the measuring cup without pressing down.
  3. Level the top with the back of a knife.

Scooping the cup straight into the bag can add 20% or more flour, which makes cakes dry and cookies tough.

Handy kitchen equivalents

  • 1 cup = 16 tablespoons = 48 teaspoons
  • 1 tablespoon = 3 teaspoons ≈ 14.8 ml
  • 1 stick of butter = 1/2 cup = 113 g

For ounces, pounds and other units, use the unit converter. Cooking for more people? Scale servings with the ratio calculator.

Last reviewed October 2026.

Frequently asked questions

How many grams are in a cup?

It depends on the ingredient, because a cup measures volume, not weight. A cup of water weighs about 237 g, a cup of granulated sugar about 200 g, and a cup of all-purpose flour about 120 g when spooned and leveled.

Why is my flour conversion different from another website?

Flour packs down easily. A cup scooped straight from the bag can weigh 140 g or more, while a cup spooned in and leveled weighs about 120 g. This tool uses the spooned-and-leveled weight that most US recipes and bakers use.

Is a US cup the same as a UK or metric cup?

Not quite. A US customary cup is 236.6 ml, while a metric cup (used in Australia, Canada and New Zealand) is 250 ml, about 6% more. This tool uses US cups; choose "Metric cup" to convert with 250 ml cups instead.

Can I convert cups to grams too?

Yes. Switch the direction to "Cups → grams" and type the number of cups. You can use decimals like 0.75 or fractions like 3/4 or 1 1/2.

Is weighing better than using cups?

For baking, yes. Weighing with a kitchen scale is more accurate and repeatable than cups, especially for flour, cocoa and powdered sugar. Use cups when you do not have a scale.