Cups to grams formula
For 1.5 cups of all-purpose flour: 1.5 × 120 = 180 grams. For 1.5 cups of granulated sugar: 1.5 × 198 = 297 grams.
How many grams are in a cup depends on the ingredient. One US cup is 120 grams of all-purpose flour, 198 grams of granulated sugar, 227 grams of butter or approximately 237 grams of water.
Choose the ingredient first, then enter the number of US cups.
Choose the ingredient before converting because every ingredient has a different weight per cup.
Results use the documented ingredient state and one US customary cup.
A cup measures volume. The gram weight changes with density, packing and ingredient state.
Swipe horizontally to view every column
| Ingredient | 1 US cup | 1/2 cup | 1/4 cup |
|---|---|---|---|
| All-Purpose Flour | 120 g | 60 g | 30 g |
| Granulated Sugar | 198 g | 99 g | 50 g |
| Brown Sugar | 213 g | 106 g | 53 g |
| Butter | 227 g | 114 g | 57 g |
| Powdered Sugar | 113 g | 56 g | 28 g |
| Unsweetened Cocoa Powder | 84 g | 42 g | 21 g |
| Honey | 340 g | 170 g | 85 g |
| Fresh Milk | 244 g | 122 g | 61 g |
| Old-Fashioned Rolled Oats | 89 g | 44 g | 22 g |
| Vegetable Oil | 198 g | 99 g | 50 g |
| Long-Grain White Rice | 185 g | 92 g | 46 g |
| Water | 237 g | 118 g | 59 g |
| Chocolate Chips | 170 g | 85 g | 42 g |
| Whole Almonds | 142 g | 71 g | 36 g |
Swipe horizontally to view every column
| Cup amount | All-purpose flour | Granulated sugar | Butter |
|---|---|---|---|
| 1/8 cup | 15 g flour | 25 g sugar | 28 g butter |
| 1/4 cup | 30 g flour | 50 g sugar | 57 g butter |
| 1/3 cup | 40 g flour | 66 g sugar | 76 g butter |
| 1/2 cup | 60 g flour | 99 g sugar | 114 g butter |
| 3/4 cup | 90 g flour | 148 g sugar | 170 g butter |
| 1 cup | 120 g flour | 198 g sugar | 227 g butter |
| 1 1/2 cups | 180 g flour | 297 g sugar | 340 g butter |
| 2 cups | 240 g flour | 396 g sugar | 454 g butter |
| 3 cups | 360 g flour | 594 g sugar | 681 g butter |
For 1.5 cups of all-purpose flour: 1.5 × 120 = 180 grams. For 1.5 cups of granulated sugar: 1.5 × 198 = 297 grams.
A US customary cup is approximately 236.588 milliliters. A metric cup is 250 milliliters. Ingredient charts can also use different house standards, so identify the cup standard and source before comparing answers.
Recipes rarely stop at one cup, and the arithmetic is easy to get wrong halfway through a batch. These are the amounts people look up most, worked out for the three ingredients that appear in almost every recipe.
| Amount | Flour | Granulated sugar | Butter |
|---|---|---|---|
| 1/4 cup | 30 g | 50 g | 57 g |
| 1/3 cup | 40 g | 66 g | 76 g |
| 1/2 cup | 60 g | 99 g | 114 g |
| 3/4 cup | 90 g | 148 g | 170 g |
| 1 cup | 120 g | 198 g | 227 g |
| 1 1/2 cups | 180 g | 297 g | 340 g |
| 2 cups | 240 g | 396 g | 454 g |
| 3 cups | 360 g | 594 g | 681 g |
There is no universal answer to what one cup in grams weighs, because a cup is a fixed volume and every ingredient fills it differently. Flour comes to 120 g per cup, butter 227 g and honey 340 g. That is the same container holding nearly three times the weight.
If you are converting a whole recipe, work from the flour first. It is the ingredient where the cup measurement is least reliable, and the one that changes the result most.
Method and source
Each result uses the grams-per-cup value for the selected ingredient. Results are rounded for practical kitchen use.
Primary reference: King Arthur Baking Ingredient Weight Chart
Cup standard: NIST US customary cup reference
Use a specific amount page or choose an ingredient guide.