Cup to Gram Converter
Convert cups to grams for 20 common baking and cooking ingredients.
Select flour, sugar, butter, honey, oats, and more to get grams and ounces.
Cups measure volume. Grams measure mass. The conversion factor between them is completely different for every ingredient because density varies so much.
One cup of all-purpose flour weighs about 120 grams. One cup of water weighs 240 grams. One cup of honey weighs 340 grams. These are not close — honey is nearly three times as heavy as flour for the same volume. That is why volume measurements frustrate professional bakers: a “cup of flour” depends on whether the flour was sifted, spooned, or scooped directly from the bag (scooping compresses it and can add 20-30%).
The gram values in this calculator use the standard culinary measurements that most professional baking recipes target — unsifted, spooned flour; packed brown sugar; solid room-temperature butter. If your ingredient is in a significantly different state (melted butter, sifted flour), the actual weight will differ slightly.
Ingredients and their grams per cup:
- All-purpose flour: 120 g
- Cake flour: 100 g (lighter because it is milled finer)
- Bread flour: 127 g (heavier protein content)
- Whole wheat flour: 120 g
- Almond flour: 96 g
- Cocoa powder: 100 g
- Granulated sugar: 200 g
- Brown sugar (packed): 200 g
- Powdered sugar: 120 g
- Butter: 227 g (one US stick = 1/2 cup = 113.5 g)
- Vegetable oil: 218 g
- Honey: 340 g
- Maple syrup: 322 g
- Milk: 240 g
- Water: 240 g
- Rolled oats: 90 g
- White rice (dry): 185 g
- Breadcrumbs: 120 g
- Cream cheese: 225 g
- Peanut butter: 258 g
For serious baking, a kitchen scale is worth the investment. Weighing ingredients is faster and more accurate than measuring cups, and cleanup is easier too.