US and UK cup sizes ↑
In the UK, cups have rarely been used in published recipes since the 1960s. If it's an old UK recipe, it'll use the imperial cup (284.131ml), which is significantly more than its more modern 250ml metric cup counterpart, now referenced in the UK as well as Australia, New Zealand, Canada and the rest of the Commonwealth.
In the US, it's 236.59ml in recipes, but 240ml on nutritional labelling. Still with me? The mess begins before you've even cracked an egg.
With all this confusion around cup sizes, weighing in grams with a set of kitchen scales becomes an easier and more accurate way to cook. It also helps you ensure your cake doesn't turn out somewhere between a concrete slab and a chocolate omelette.
You can use the reference tables below to assist you with converting your recipe ingredients from cups to grams. Note that we also have other tools to help you convert to tablespoons, teaspoons and mL.
Weighing scales at the ready, let's go through the most common baking ingredients in turn...
How much is 1 cup of sugar in grams? ↑
One cup of granulated sugar measures around 200 grams or 7.1 ounces. One cup of powdered sugar weighs around 121 grams and 4.2 ounces.
Cups to grams for white sugar (granulated)
| Cups | Grams | Ounces |
|---|
| 1/4 cup | 50 g | 1.8 oz |
| 1/3 cup | 67 g | 2.4 oz |
| 1/2 cup | 101 g | 3.5 oz |
| 2/3 cup | 134 g | 4.7 oz |
| 3/4 cup | 151 g | 5.3 oz |
| 1 cup | 201 g | 7.1 oz |
How much is 1 cup of butter in grams? ↑
One cup of butter measures around 227 grams or 8 ounces. Half a cup of butter weighs around 114 grams or 4 ounces.
Cups to grams for butter
| Cups | Grams | Ounces |
|---|
| 1/4 cup | 57 g | 2 oz |
| 1/3 cup | 76 g | 2.7 oz |
| 1/2 cup | 114 g | 4 oz |
| 2/3 cup | 151 g | 5.3 oz |
| 3/4 cup | 170 g | 6 oz |
| 1 cup | 227 g | 8 oz |
How much is 1 cup of flour in grams? ↑
One cup of all-purpose flour measures around 125 grams or 4.4 ounces. One cup of bread flour weighs around 130 grams or 4.6 ounces.
Cups to grams for flour (all-purpose)
| Cups | Grams | Ounces |
|---|
| 1/8 cup (2 tbsp) | 16 g | 0.6 oz |
| 1/4 cup | 31 g | 1.1 oz |
| 1/3 cup | 42 g | 1.5 oz |
| 1/2 cup | 63 g | 2.2 oz |
| 2/3 cup | 83 g | 2.9 oz |
| 3/4 cup | 94 g | 3.3 oz |
| 1 cup | 125 g | 4.4 oz |
Cups to grams for bread flour
| Cups | Grams | Ounces |
|---|
| 1/4 cup | 33 g | 1.1 oz |
| 1/3 cup | 43 g | 1.5 oz |
| 1/2 cup | 65 g | 2.3 oz |
| 2/3 cup | 87 g | 3.1 oz |
| 3/4 cup | 98 g | 3.4 oz |
| 1 cup | 130 g | 4.6 oz |
Cups to grams for dry goods
| Cups | Grams | Ounces |
|---|
| 1/8 cup (2 tbsp) | 16 g | 0.6 oz |
| 1/4 cup | 32 g | 1.1 oz |
| 1/3 cup | 42 g | 1.5 oz |
| 1/2 cup | 64 g | 2.2 oz |
| 2/3 cup | 85 g | 3 oz |
| 3/4 cup | 95 g | 3.4 oz |
| 1 cup | 127 g | 4.5 oz |
Other baking ingredients ↑
| Ingredient | 1 Cup | 1/2 Cup | 1/3 Cup |
|---|
| Cake flour | 114 g | 72 g | 38 g |
| Honey | 336 g | 167 g | 112 g |
| Margarine | 230 g | 115 g | 76.6 g |
| Milk | 244.87 g | 122.44 g | 81.62 g |
| Oats | 102.2 g | 51.1 g | 34.1 g |
| Rice (uncooked) | 178.15 g | 89.1 g | 59.38 g |
| Brown sugar (packed) | 195 g | 97.5 g | 65 g |
| Powdered sugar (unsifted) | 120.9 g | 60.45 g | 40.3 g |
| Almonds | 132 g | 66 g | 44 g |
It's worth being aware that the list of ingredient options included in the converter and reference charts are approximations, based upon ingredient densities sourced from databases and recipe cookbooks. You can see more conversions on the baking ingredient conversions page. For the purposes of clarification, we reference the US cup (236.588 mL) in our reference charts above.