Calories in 1 Oz of Peanut Butter
1 oz of peanut butter (28 g) has 170 calories. That is 8% of a 2,000 calorie diet.
The calories come from 6.3 g of protein, 15 g of fat and 6.3 g of carbohydrates, a split of 14% protein, 72% fat and 14% carbs. For comparison, 2 oz of peanut butter has 339 calories. Burning 170 calories takes about 30 minutes of brisk walking or 14 minutes of running for a 155 lb adult, based on Harvard Health Publishing activity estimates.
Peanut Butter Calorie Calculator
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Peanut Butter calories by serving size
Common amounts of peanut butter with calories and macros. Tap a row for its full nutrition page.
Peanut Butter vs similar foods
Calories per 100 g compared with other nuts and seeds.
Peanut Butter: common questions
How many calories are in 1 oz of peanut butter?
1 oz of peanut butter weighs about 28 g and has 170 calories.
How much protein is in 1 oz of peanut butter?
1 oz of peanut butter has 6.3 g of protein, which is 13% of the 50 g Daily Value.
How many carbs are in 1 oz of peanut butter?
1 oz of peanut butter has 6.3 g of carbohydrates, including 1.4 g of fiber and 3 g of sugars.
How much peanut butter is 100 calories?
100 calories of peanut butter is 17 g, about 1 tbsp of peanut butter.
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Source: USDA FoodData Central, FNDDS 2021-2023. FDC ID 2707537. Original description: Peanut butter. Portion weights are USDA household measures.