Butter serving size, cups to grams
Here a serving of butter is counted as 1 tablespoon, which USDA weighs at 14 g, with 104 calories and 0.12 g protein. One cup weighs 7.9 oz (224 g).
Serving sizes of butter
Every household measure USDA weighs for this food, plus 1 oz and 100 g.
| Measure | Weight | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|---|
| 1 cup | 7.9 oz (224 g) | 1664 calories | 1.9 g | 0.13 g | 184.1 g |
| 1 tablespoon | 14 g | 104 calories | 0.12 g | 0.01 g | 11.5 g |
| 1 stick | 4 oz (113 g) | 840 calories | 0.96 g | 0.07 g | 92.9 g |
| 1 pat | 7 g | 52 calories | 0.06 g | 0 g | 5.8 g |
| 1 oz | 1 oz (28 g) | 211 calories | 0.24 g | 0.02 g | 23.3 g |
| 100 g | 3.5 oz (100 g) | 743 calories | 0.85 g | 0.06 g | 82.2 g |
Cups to grams
USDA weighs 1 cup of butter at 224 g. Smaller measures follow from it (1 cup = 16 tbsp = 48 tsp).
| Measure | Weight | Calories |
|---|---|---|
| 1 cup | 7.9 oz (224 g) | 1664 calories |
| 3/4 cup | 5.9 oz (168 g) | 1248 calories |
| 2/3 cup | 5.3 oz (149 g) | 1110 calories |
| 1/2 cup | 4 oz (112 g) | 832 calories |
| 1/3 cup | 2.6 oz (75 g) | 555 calories |
| 1/4 cup | 2 oz (56 g) | 416 calories |
| 1 tbsp | 14 g | 104 calories |
| 1 tsp | 4.7 g | 35 calories |
Grams and ounces to cups
| Weight | Volume | Calories |
|---|---|---|
| 1 oz | 2 tbsp | 211 calories |
| 100 g (3.5 oz) | 1/2 cup | 743 calories |
| 1 lb (454 g) | 2 cups | 3370 calories |
What 3.5 oz (100 g) of butter looks like
3.5 oz (100 g) of butter is 3.5 oz, or about 1/2 cup or 1 stick. It has 743 calories, 0.85 g protein, 0.06 g carbs and 82.2 g fat. One stick weighs 4 oz (113 g).
Keep exploring
Sources
Weights and nutrition: USDA FoodData Central, food portions and nutrients (FoodData Central, April 2026 release, accessed 2026-10-13)
- Butter (stick): Butter, stick, FDC ID 2710155 (FoodData Central survey (FNDDS) 2024-10-31)
- Kitchen measures (1 cup = 16 tbsp, 1 tbsp = 3 tsp): NDSU Extension, Ingredient Substitutions (FN198, J. Garden-Robinson, April 2013 edition). https://www.extension.purdue.edu/extmedia/HHS/HHS-784-W.pdf (accessed 2026-10-12)
How we calculate: each household measure is the gram weight USDA lists for this food. Calories and nutrients are the USDA values per 3.5 oz (100 g) scaled to that weight. 1 oz = 28.35 g and 1 lb = 453.6 g. Cup fractions are rounded to the nearest kitchen measure. A dash (—) means USDA reports no value. How we verify.