Cups to grams converter for flour, sugar, butter and more
Pick an ingredient, type an amount in cups, spoons or grams, and every other unit fills in. Fractions like 2 1/4 work.
The short answer
A US cup of all-purpose flour weighs 120 grams, a cup of granulated sugar 198 g, packed brown sugar 213 g, and a stick of butter (1/2 cup) 113 g, per King Arthur Baking's weight chart. Flour and sugar differ because grams measure weight while cups measure volume.
How it is calculated
grams = cups × grams per cup for that ingredient
1 US cup = 8 US fl oz = 236.59 mL; 1 cup = 16 tbsp; 1 tbsp = 3 tsp
1 metric cup (Canada) = 250 mL
Worked example
Your chocolate chip cookie recipe calls for 2 1/4 cups flour, 3/4 cup sugar, 3/4 cup packed brown sugar and 1 cup (two sticks) of butter, and you want to weigh everything on a kitchen scale.
- Flour: 2.25 × 120 = 270 g
- Sugar: 0.75 × 198 = 148.5 g
- Brown sugar: 0.75 × 213 = 159.75 g
- Butter: 2 sticks = 226 g
270 g flour, 148.5 g sugar, 159.75 g brown sugar, 226 g butter
Quick reference table
| Ingredient | 1 cup | 1/2 cup | 1/3 cup | 1/4 cup | 1 tbsp |
|---|---|---|---|---|---|
| All-purpose flour | 120 | 60 | 40 | 30 | 7.5 |
| Whole wheat flour | 113 | 56.5 | 37.67 | 28.25 | 7.06 |
| Granulated sugar | 198 | 99 | 66 | 49.5 | 12.38 |
| Brown sugar, packed | 213 | 106.5 | 71 | 53.25 | 13.31 |
| Powdered sugar | 113 | 56.5 | 37.67 | 28.25 | 7.06 |
| Butter | 226 | 113 | 75.33 | 56.5 | 14.13 |
| Long-grain rice, dry | 198 | 99 | 66 | 49.5 | 12.38 |
| Rolled oats | 113 | 56.5 | 37.67 | 28.25 | 7.06 |
| Semolina | 163 | 81.5 | 54.33 | 40.75 | 10.19 |
| Cocoa powder | 84 | 42 | 28 | 21 | 5.25 |
| Milk | 227 | 113.5 | 75.67 | 56.75 | 14.19 |
| Vegetable oil | 198 | 99 | 66 | 49.5 | 12.38 |
| Olive oil | 200 | 100 | 66.67 | 50 | 12.5 |
| Honey | 336 | 168 | 112 | 84 | 21 |
| Chopped dates | 149 | 74.5 | 49.67 | 37.25 | 9.31 |
Special cases and common mistakes
- Spoon and level, don't scoop. Scooping the cup straight into the flour bag packs it and adds weight. Health Canada's measuring guide says to spoon dry ingredients into the cup and level the top with a knife. Weighing skips the problem entirely.
- Canadian recipes may use a 250 mL cup. A US cup is 236.59 mL, while Canada's metric cup is 250 mL, so a metric cup of flour is about 126.8 g. Pick "Metric cups" in the converter for Canadian cookbooks.
- Ounces on a scale are not fluid ounces. A cup is 8 fluid ounces of volume, but a cup of flour weighs only 4.23 oz. Use "Ounces (weight)" when a recipe gives flour in ounces.
- A note on water and milk. King Arthur's chart lists 227 g (8 oz by weight) for a cup of water or milk, while a US cup holds 236.59 mL. The few grams' difference rarely matters in a recipe.
Frequently asked questions
How many grams are in a cup of flour?
120 g for a US cup of all-purpose or bread flour, and 113 g for whole wheat flour.
How many grams is 1 cup of sugar?
Granulated sugar is 198 g per cup, packed brown sugar 213 g, and powdered sugar 113 g.
How many grams is a stick of butter?
A US stick is 1/2 cup or 8 tablespoons, which is 113 g. One tablespoon of butter is about 14.13 g.
How many grams of rice are in a cup?
A cup of dry long-grain rice is 198 g; half a cup is 99 g.
How many tablespoons are in a cup?
16 tablespoons, or 48 teaspoons. A US tablespoon holds 14.79 mL and a teaspoon 4.93 mL.
How do I convert grams to cups?
Divide the grams by that ingredient's grams per cup. 500 g of flour ÷ 120 = 4.17 cups.
Sources
- King Arthur Baking: Ingredient Weight Chart (Last reviewed: October 9, 2026)
- NIST Handbook 44 (2026), Appendix C: US gallon = 3.785411784 L = 128 fl oz; cup = 8 fl oz (Last reviewed: October 9, 2026)
- Health Canada: Measure ingredients like a pro (250 mL cup, spoon-and-level method) (Last reviewed: October 9, 2026)