Grams to Cups Converter
Grams are weight and cups are volume, so 100 g of flour fills 0.83 cups while 100 g of honey barely covers a third of a cup. Pick the ingredient and convert any gram amount.
Example: with Weight (grams) 100 · Ingredient All-purpose flour (120 g/cup) · Custom grams per cup 120 → Volume: 0.83 cups.
Computed by the calculator below using its default values. Change any input to see your own numbers.
⚖️ Bake by weight with a digital scale
Check it outHow many cups is 100 grams?
Divide grams by the ingredient’s grams-per-cup. 100 g of all-purpose flour ÷ 120 g/cup = 0.83 cups — exactly ¾ cup plus 4 teaspoons. The same 100 g is ½ cup of granulated sugar, 0.44 cup of butter, and only 0.42 cup of water. That spread is why a “grams to cups” answer without an ingredient is meaningless.
Other amounts people look up, using the same densities: 90 g of flour is exactly ¾ cup; 125 g of flour is 1.04 cups (a level cup plus 2 teaspoons); 180 g of sugar is 0.9 cup; and 1,000 g (1 kg) is 8.33 cups of flour, 5 cups of sugar, or 4.23 cups of water. For baking, this direction of travel — metric recipe to US cups — always loses a little precision, so when a recipe gives grams, the most accurate move is to weigh the ingredient and skip cups entirely.
How it’s calculated
Cups = grams ÷ grams-per-cup. Reference densities follow King Arthur Baking and USDA values: all-purpose flour 120 g, granulated sugar 200 g, packed brown sugar 220 g, butter 227 g (half a pound), whole milk 245 g, honey 339 g, and uncooked long-grain white rice 185 g per US cup; water is 236.588 g because 1 US cup = 236.588 mL at 1 g/mL. Tablespoons are cups × 16.
Results update as you type and are estimates, not professional advice — verify important decisions with a qualified professional.
Common mistakes
- Using one conversion for every ingredient — 100 g is 0.83 cups of flour but only 0.29 cup of honey.
- Scooping flour with the measuring cup: it compacts to 140–150 g per cup, up to 25% over the 120 g standard — spoon it in and level.
- Confusing the US cup (236.6 mL) with the metric 250 mL cup used in Australian and many European recipes.
Frequently asked questions
How many cups is 100 grams of flour?
100 ÷ 120 = 0.83 cups — about ¾ cup plus 4 level teaspoons of all-purpose flour.
How many cups is 1000 grams?
1,000 g (1 kg) is 8.33 cups of flour, exactly 5 cups of granulated sugar, or 4.23 cups of water.
Is 250 grams one cup?
Only for ingredients near 250 g/cup: 250 g of water is 1.06 cups and of milk 1.02 cups, but 250 g of flour is more than 2 cups.
Why do grams-to-cups charts disagree?
They assume different densities. King Arthur uses 120 g per cup of flour while USDA tables use about 125 g, and packing or sifting changes the real number further.