Cups to Grams Converter
Choose an ingredient and an amount in cups; get the weight in grams based on King Arthur Baking’s ingredient weight chart — the reference most US recipe developers bake against.
Full conversion table (1 cup, in grams and ounces)
| Ingredient (1 US cup) | Grams | Ounces |
|---|---|---|
| All-purpose flour — spooned & leveled | 120 g | 4.2 oz |
| Bread flour — spooned & leveled | 120 g | 4.2 oz |
| Whole wheat flour | 113 g | 4.0 oz |
| Almond flour | 96 g | 3.4 oz |
| Granulated sugar | 198 g | 7.0 oz |
| Brown sugar (packed) | 213 g | 7.5 oz |
| Confectioners’ sugar — unsifted | 113 g | 4.0 oz |
| Butter — 2 sticks | 227 g | 8.0 oz |
| Vegetable oil | 198 g | 7.0 oz |
| Honey | 340 g | 12.0 oz |
| Unsweetened cocoa powder | 84 g | 3.0 oz |
| Old-fashioned rolled oats | 89 g | 3.1 oz |
| Chocolate chips | 170 g | 6.0 oz |
| Walnuts (chopped) | 113 g | 4.0 oz |
| Sour cream | 227 g | 8.0 oz |
| Cream cheese | 227 g | 8.0 oz |
| Milk — 1 cup = 240 ml | 240 g | 8.5 oz |
| Water — 1 cup = 236.6 ml | 237 g | 8.4 oz |
Why flour is the ingredient that ruins bakes
Flour compresses. The same measuring cup can hold 120 g of gently spooned flour or more than 150 g of scooped-and-packed flour. That invisible 25–30% swing is the difference between a tender cookie and a dry hockey puck. Sugar, by contrast, pours to a consistent density, which is why volume measurements fail bakers mostly through flour. Read how to measure flour correctly for the two-step fix, or better yet, bake by weight.
Frequently asked questions
How many grams is 1 cup of flour?
One US cup of all-purpose flour weighs 120 grams when spooned into the cup and leveled off, per the King Arthur Baking standard. Scooping the cup directly into the flour bag compacts it and can push the weight to 150 grams or more — a 25% overdose.
How many grams is 1 cup of sugar?
Granulated sugar is 198 grams per US cup (many sources round to 200 g). Packed light or dark brown sugar is 213 grams, and unsifted confectioners’ sugar is 113 grams per cup.
How much does a stick of butter weigh?
One US stick of butter is 113 grams (4 oz, 8 tablespoons, or ½ cup). Two sticks — one full cup — weigh 227 grams.
Why do different websites list different gram weights for a cup?
Because a “cup” of a dry ingredient depends on how it was packed. Published charts choose a measuring convention: this site uses King Arthur Baking’s weight chart (flour spooned and leveled) for solids and the 240 ml US legal cup for liquids, and says so on every conversion.
Is it better to bake by weight or by volume?
Weight, always, for flour-based baking. A $15 digital kitchen scale removes the single biggest source of home-baking failure — too much flour — and makes recipes reproducible to the gram.
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Sources: King Arthur Baking ingredient weight chart · FDA: US legal cup = 240 ml