Cups to Grams Converter
Recipes from the US, the UK, and Australia often list ingredients in cups, but most kitchen scales weigh in grams. Use this page to convert cups to grams for any common baking ingredient: pick the ingredient, enter the cup amount, and read off the weight in grams.
This converter uses the metric cup (250 ml) by default. A US cup is 240 ml, about 4 percent smaller, so the same ingredient weighs slightly less per US cup. For a US recipe, choose Cup (US) in the Convert from menu. For the difference between US, metric, and UK cups, see what is a cup measurement.
Enter a value and pick your units.
Result
0 gCommon Cups to Grams Conversions
A quick-reference table for the most-used baking ingredients. Values are rounded to the nearest gram.
| Cups | Plain Flour | Sugar | Brown Sugar | Butter | Rolled Oats |
|---|---|---|---|---|---|
| ¼ cup | 35 g | 50 g | 55 g | 57 g | 23 g |
| ⅓ cup | 47 g | 67 g | 73 g | 76 g | 30 g |
| ½ cup | 70 g | 100 g | 110 g | 114 g | 45 g |
| ⅔ cup | 93 g | 133 g | 147 g | 151 g | 60 g |
| ¾ cup | 105 g | 150 g | 165 g | 170 g | 68 g |
| 1 cup | 140 g | 200 g | 220 g | 227 g | 90 g |
| 2 cups | 280 g | 400 g | 440 g | 454 g | 180 g |
Why Convert Cups to Grams?
Weighing ingredients is more accurate than measuring by volume. A cup of flour can weigh anywhere from 110 to 150 grams depending on how tightly it's packed, so two bakers following the same cup-based recipe can end up with very different results. Switching to grams removes that variability. Your cake comes out the same every time. For the standard figure, see 1 cup of flour in grams.
For ingredient-specific conversions and tips, open the dedicated page for plain flour, sugar, butter cups to grams, or brown sugar.
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Frequently Asked Questions
- How many grams is 1 cup?
- It depends on the ingredient. 1 cup of plain flour is 140 grams, 1 cup of granulated sugar is 200 grams, and 1 cup of butter is 227 grams. These figures use the metric cup (250 ml). For a US cup (240 ml), each weight is about 4% lower. Use the converter above for any ingredient.
- Why does the cup-to-gram conversion differ between ingredients?
- A cup is a measure of volume while a gram is a measure of weight. Ingredients have different densities, so the same volume can weigh very different amounts. Fluffy plain flour weighs about 140 grams per metric cup, while the same cup of dense granulated sugar weighs around 200 grams.
- Are US cups and metric cups the same?
- Not quite. A metric cup is 250 ml and a US cup is 240 ml, about 4% smaller. A US cup holds roughly 4% less of any ingredient than a metric cup. This site uses the metric cup as the default. For US cups, switch the unit in the converter above.
- How many grams is half a cup of flour?
- Half a cup of plain flour is approximately 63 grams. The exact figure comes from the standard metric cup weight of 125 grams, halved. If you are using a US cup (240 ml instead of 250 ml), half a cup weighs around 60 grams. Use the converter above for any amount. Open flour converter
- How many grams is half a cup of sugar?
- Half a cup of granulated sugar is approximately 100 grams, based on the standard metric cup weight of 200 grams. For a US cup (240 ml), the figure is around 96 grams. Use the converter above to check any amount or ingredient. Open sugar converter