Cups to Grams Converter
Convert any cup measurement to precise grams
Multiply the number of cups by the ingredient's grams-per-cup figure. Two cups of all-purpose flour is 2 × 125 = 250 g. The figure changes with the ingredient, which is why one universal ratio does not exist.
Cups to grams for common ingredients
| Ingredient | ¼ cup | ⅓ cup | ½ cup | ¾ cup | 1 cup | 2 cups |
|---|---|---|---|---|---|---|
| Cake Flour | 30 g | 40 g | 60 g | 90 g | 120 g | 240 g |
| All-Purpose Flour | 31 g | 42 g | 63 g | 94 g | 125 g | 250 g |
| Bread Flour | 33 g | 43 g | 65 g | 98 g | 130 g | 260 g |
| White Granulated Sugar | 50 g | 67 g | 100 g | 150 g | 200 g | 400 g |
| Brown Sugar (packed) | 55 g | 73 g | 110 g | 165 g | 220 g | 440 g |
| Powdered Sugar (icing sugar) | 30 g | 40 g | 60 g | 90 g | 120 g | 240 g |
| Butter (unsalted) | 57 g | 76 g | 114 g | 170 g | 227 g | 454 g |
| Water | 59 g | 79 g | 119 g | 178 g | 237 g | 474 g |
| Milk (whole) | 61 g | 81 g | 122 g | 183 g | 244 g | 488 g |
| Honey | 85 g | 113 g | 170 g | 255 g | 340 g | 680 g |
| Rolled Oats (old fashioned) | 23 g | 30 g | 45 g | 68 g | 90 g | 180 g |
| Cocoa Powder (unsweetened) | 21 g | 28 g | 43 g | 64 g | 85 g | 170 g |
Why the same cup gives a different weight
A cup measures space and a gram measures matter. A cup of almond flour holds 96 g; a cup of honey holds 340 g. The cup has not changed — what is in it has.
That also means the way you fill the cup changes the result. Spooned and levelled, a cup of all-purpose flour is 125 g. Scooped straight from the bag it can be 140–150 g, and a recipe using three cups then gets nearly a quarter of a cup too much.
The same fractions in a metric cup
British, Australian, New Zealand and Canadian recipes normally mean a 250 ml metric cup, which holds about 5.7% more than the 236.6 ml American one. Using the wrong column is a small error in a stew and a real one in bread.
| Ingredient | ¼ cup | ⅓ cup | ½ cup | ¾ cup | 1 cup | 2 cups |
|---|---|---|---|---|---|---|
| Cake Flour | 32 g | 42 g | 63 g | 95 g | 127 g | 254 g |
| All-Purpose Flour | 33 g | 44 g | 66 g | 99 g | 132 g | 264 g |
| Bread Flour | 34 g | 46 g | 69 g | 103 g | 137 g | 275 g |
| White Granulated Sugar | 53 g | 70 g | 106 g | 159 g | 211 g | 423 g |
| Brown Sugar (packed) | 58 g | 77 g | 116 g | 174 g | 232 g | 465 g |
| Powdered Sugar (icing sugar) | 32 g | 42 g | 63 g | 95 g | 127 g | 254 g |
| Butter (unsalted) | 60 g | 80 g | 120 g | 180 g | 240 g | 480 g |
| Water | 63 g | 83 g | 125 g | 188 g | 250 g | 501 g |
| Milk (whole) | 64 g | 86 g | 129 g | 193 g | 258 g | 516 g |
| Honey | 90 g | 120 g | 180 g | 269 g | 359 g | 719 g |
| Rolled Oats (old fashioned) | 24 g | 32 g | 48 g | 71 g | 95 g | 190 g |
| Cocoa Powder (unsweetened) | 22 g | 30 g | 45 g | 67 g | 90 g | 180 g |
Frequently asked questions
How many grams is 1 cup of flour?
One cup of all-purpose flour is 125 grams, measured spooned and levelled.
How many grams is 1 cup of sugar?
One cup of white granulated sugar is 200 grams.
How many grams is 1 cup of butter?
One cup of butter is 227 grams — two US sticks.
Is 1 cup always the same weight?
No. It depends entirely on the ingredient's density, which is why this converter asks what you are measuring.
How many grams is 1 cup?
It depends on the ingredient, because a cup measures space and a gram measures weight. One US cup is 125 g of all-purpose flour, 200 g of granulated sugar, 227 g of butter, 340 g of honey and 236 g of water. The table above covers the rest.
Is a cup the same everywhere?
No. A US customary cup is 236.6 ml. British, Australian, New Zealand and Canadian recipes normally mean a 250 ml metric cup, about 5.7% larger. Older British books use a 284 ml imperial cup. Every converter on this site lets you pick which one you mean.
Why do different sites give different grams per cup for flour?
Because how you fill the cup changes the weight by more than the flour does. Spooned and levelled, a cup of all-purpose flour is about 125 g; scooped straight from the bag it can be 145 g or more. This site uses spooned and levelled throughout, which is what most recipe developers write to.
Should I convert a recipe to grams at all?
If it is bread, pastry, or anything where the flour-to-liquid ratio matters, yes — weighing removes the biggest source of variation and saves washing a set of cups. For soups, stews and most savoury cooking, cups are fine.
How do I measure a fraction of a cup accurately?
Use the nested dry-cup set rather than filling a larger cup partway, and level with a straight edge. For a third or two thirds, weighing is genuinely easier: a third of a cup of flour is about 42 g.
You may also find this useful: Cups, Pints, Quarts & Gallons Converter.