1 cup butter = 8.007 ounces
Volume is only half the story. Butter weighs 227 g per US cup (1 cup = 2 sticks), so we convert with a tested, ingredient-specific factor instead of a generic table.
Butter cups to grams
1 cup = 2 sticks · rounded for kitchen use
| Cups | Grams | Ounces |
|---|---|---|
| ¼ cup | 56.75 g | 2.002 oz |
| ⅓ cup | 75.66 g | 2.669 oz |
| ½ cup | 113.5 g | 4.004 oz |
| ⅔ cup | 151.34 g | 5.338 oz |
| ¾ cup | 170.25 g | 6.005 oz |
| 1 cup | 227 g | 8.007 oz |
| 1 ½ cups | 340.5 g | 12.01 oz |
| 2 cups | 454 g | 16.01 oz |
| 3 cups | 681 g | 24.02 oz |
Exact factor details
- Exact factor
- 1 cup = 227 g (1 cup = 2 sticks)
- Significant digits
- 3 significant figures for table display
- Data source
- USDA FoodData Central
Why butter conversions vary
Butter is the easiest fat to convert: one US cup is exactly 227 g, which is two standard sticks, and each stick is marked in 8-tablespoon increments. European butter blocks (250 g) are close but not equal to a cup — a 23-gram difference that matters in laminated doughs and shortbread.
Our factor for butter — 227 g per US cup — comes from USDA FoodData Central. Weighing beats measuring cups for repeatability: a scale gives the same result every time regardless of how the ingredient settled, and it scales recipes cleanly. Note that a US cup (236.6 ml) and a metric cup (250 ml) are not the same; recipes from outside North America may assume the metric size, which shifts every weight by about five percent.
The table below lists the amounts bakers actually reach for — quarters, thirds, and halves of a cup through three full cups — computed directly from the factor above. The converter handles any other amount instantly and uses the exact same number, so the quick reference and the live result can never drift apart.
Frequently asked questions
How much does 1 cup of butter weigh?
One US cup of butter weighs 227 g (1 cup = 2 sticks). This comes from USDA FoodData Central.
Why do some recipes list a different weight for butter?
Measuring conventions and brands differ, and packing changes the weight. We state our convention openly; when a recipe names its own gram value, follow that one for best results.
Should I measure butter by cups or by weight?
Weight, whenever the recipe allows. Use the tablespoon ruler printed on the wrapper; one stick is 8 tablespoons or 113 g.