Calories in salted butter.
717 kcal per 100 g.
Butter is about 81% fat, and fat is 9 kcal per gram: a tablespoon (14 g) is about 100 kcal, a small pat 36. It is the cooking fat most often left out of a food log because it "disappears" into the pan.
Butter, salted · SR Legacy (2018-04) · USDA FDC 173410
Nutrition for your portion
| Nutrient | Per 100 g | 100 g |
|---|---|---|
| Energy | 717 kcal | 717 kcal |
| Protein | 0.85 g | 0.85 g |
| Carbohydrates | 0.06 g | 0.06 g |
| Fat | 81.1 g | 81.1 g |
| Fibre | 0 g | 0 g |
| Sugars | 0.06 g | 0.06 g |
| Saturated fat | 51.4 g | 51.4 g |
| Sodium | 643 mg | 643 mg |
| Salt (calculated from sodium) | 1.61 g | 1.61 g |
| Vitamin A (RAE) | 684 ug | 684 ug |
| Vitamin D (D2 + D3) | 0 ug | 0 ug |
| Vitamin E (alpha-tocopherol) | 2.32 mg | 2.32 mg |
| Vitamin K (phylloquinone) | 7 ug | 7 ug |
| Vitamin C | 0 mg | 0 mg |
| Thiamin | 0.005 mg | 0.005 mg |
| Riboflavin | 0.03 mg | 0.03 mg |
| Niacin | 0.04 mg | 0.04 mg |
| Vitamin B6 | 0.003 mg | 0.003 mg |
| Folate, total | 3 ug | 3 ug |
| Vitamin B12 | 0.17 ug | 0.17 ug |
| Potassium | 24 mg | 24 mg |
| Calcium | 24 mg | 24 mg |
| Phosphorus | 24 mg | 24 mg |
| Magnesium | 2 mg | 2 mg |
| Iron | 0.02 mg | 0.02 mg |
| Zinc | 0.09 mg | 0.09 mg |
| Selenium | 1 ug | 1 ug |
| Iodine | Unknown | Unknown |
| Copper | 0 mg | 0 mg |
Energy comes from USDA nutrient 1008. Salt is calculated as sodium × 2.5, with unit conversion to grams. It is not a separately measured salt value.
Preparation
Butter is 717 kcal per 100 g and 81.1 g of fat — the rest is water and milk solids, which is what separates it from oil at 884 and what makes it brown, foam and burn. Clarifying it removes the water and pushes it towards the oil figure. Nothing in cooking reduces butter's calories; melting only makes it easier to use more of.
Logging this food
A pat is 5 g and 36 kcal, a tablespoon 14 g and 102, a stick 113 g and 810, a cup 227 g and 1,628. The pat is the unit to picture on toast and the tablespoon the one to picture in a pan. Butter is rarely weighed and almost always underestimated: a generously buttered slice of bread can carry more calories in the butter than in the bread.
Swaps and alternatives
Olive oil is 884 kcal per 100 g, more per gram than butter — the swap is about the kind of fat, not the amount of it. The saving that works is measuring: a level teaspoon instead of a knife-load. Spray oils and nonstick pans remove most of a pan's fat entirely, which no substitution can match.