How Many Grams in a Cup?
The answer depends on the ingredient. A cup of flour weighs much less than a cup of sugar, and liquids are different again. Use this chart for quick kitchen conversions, then use the converter for exact amounts.
Quick answer: common grams per cup
| Ingredient | 1 US cup weighs | Notes |
|---|---|---|
| All-Purpose Flour | 125g | Spoon into the cup and level; do not scoop from the bag. |
| Bread Flour | 127g | Spoon into the cup and level; do not scoop from the bag. |
| Cake Flour | 114g | Spoon into the cup and level; do not scoop from the bag. |
| Granulated Sugar | 200g | Measure by weight for the most consistent result. |
| Brown Sugar (Packed) | 220g | Pack firmly into the cup before leveling. |
| Powdered Sugar | 120g | Measure by weight for the most consistent result. |
| Butter | 227g | Measure by weight for the most consistent result. |
| Milk | 245g | Measure by weight for the most consistent result. |
| Water | 240g | Close to milliliters for water-like liquids. |
| Rice (Uncooked) | 185g | Measure by weight for the most consistent result. |
| Oats | 90g | Measure by weight for the most consistent result. |
| Cocoa Powder | 86g | Measure by weight for the most consistent result. |
| Honey | 340g | Measure by weight for the most consistent result. |
| Almond Flour | 96g | Spoon into the cup and level; do not scoop from the bag. |
Convert 1 Cup to Grams
Select an ingredient to convert one cup to grams, or change the cup amount for your recipe.
Why Grams per Cup Changes
Cups are a volume measurement. Grams are a weight measurement. That means a cup can weigh 86g for cocoa powder, 125g for all-purpose flour, 200g for granulated sugar, 227g for butter, or about 236g for water. Ingredient density is the reason a single conversion factor does not work.
Flour is the best example. A loosely spooned cup of flour is about 125g, but a cup scooped directly from the bag can be much heavier because the flour gets packed. For baking, weighing flour in grams is usually more reliable than measuring by cups.
Useful 1 Cup Benchmarks
Flour
1 cup all-purpose flour = 125g. Use spoon-and-level measuring if you do not have a scale.
Sugar
1 cup granulated sugar = 200g. Packed brown sugar is heavier at about 220g per cup.
Butter
1 cup butter = 227g, which is 2 US sticks or 16 tablespoons.
Need a Specific Gram Amount?
If your recipe starts with grams instead of cups, use the main grams to cups converter or quick pages for 100 grams to cups, 150 grams to cups, and 200 grams to cups.
Frequently Asked Questions
There is no single grams-per-cup number because cups measure volume and grams measure weight. One cup is 125g for all-purpose flour, 200g for granulated sugar, 227g for butter, and 236g for water.