Calories in peanut butter.
598 kcal per 100 g.
Two tablespoons of peanut butter (32 g) is about 190 kcal with 7 g of protein. The standard "tablespoon" people spread is often closer to 20 g than the 16 g USDA assumes, which is where the count drifts.
Peanut butter, smooth style, with salt (Includes foods for USDA's Food Distribution Program) · SR Legacy (2018-04) · USDA FDC 174266
Nutrition for your portion
| Nutrient | Per 100 g | 100 g |
|---|---|---|
| Energy | 598 kcal | 598 kcal |
| Protein | 22.2 g | 22.2 g |
| Carbohydrates | 22.3 g | 22.3 g |
| Fat | 51.4 g | 51.4 g |
| Fibre | 5 g | 5 g |
| Sugars | 10.5 g | 10.5 g |
| Saturated fat | 10.3 g | 10.3 g |
| Sodium | 426 mg | 426 mg |
| Salt (calculated from sodium) | 1.07 g | 1.07 g |
| Vitamin A (RAE) | 0 ug | 0 ug |
| Vitamin D (D2 + D3) | 0 ug | 0 ug |
| Vitamin E (alpha-tocopherol) | 9.1 mg | 9.1 mg |
| Vitamin K (phylloquinone) | 0.3 ug | 0.3 ug |
| Vitamin C | 0 mg | 0 mg |
| Thiamin | 0.15 mg | 0.15 mg |
| Riboflavin | 0.19 mg | 0.19 mg |
| Niacin | 13.1 mg | 13.1 mg |
| Vitamin B6 | 0.44 mg | 0.44 mg |
| Folate, total | 87 ug | 87 ug |
| Vitamin B12 | 0 ug | 0 ug |
| Potassium | 558 mg | 558 mg |
| Calcium | 49 mg | 49 mg |
| Phosphorus | 335 mg | 335 mg |
| Magnesium | 168 mg | 168 mg |
| Iron | 1.74 mg | 1.74 mg |
| Zinc | 2.51 mg | 2.51 mg |
| Selenium | 4.1 ug | 4.1 ug |
| Iodine | Unknown | Unknown |
| Copper | 0.42 mg | 0.42 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
Peanut butter is 598 kcal per 100 g, a little above whole peanuts at 567, because commercial peanut butter usually carries added oil and sugar along with the ground nuts. Nothing about spreading or baking it changes the figure. Natural peanut butter separates and needs stirring, and the oil that rose to the top is part of the food — pouring it off genuinely lowers the number, by an amount nobody can tell you.
Logging this food
USDA's serving is two tablespoons: 32 g and 191 kcal. That is a level two tablespoons, and the difference between level and heaped on a spread this thick is easily 50 kcal. A cup is 258 g and 1,543. Weighing peanut butter is worth the trouble more than for almost any other food, because the spoon lies by so much.
Swaps and alternatives
The unsalted row is identical in calories at 598 per 100 g — the salt is a sodium decision, not an energy one. Whole peanuts are 567 and take longer to eat. Powdered peanut butter, not in this set, is the only real calorie swap, since most of the fat has been pressed out.