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How Many Calories in Peanut Butter?

Nutrition data reviewed against USDA FoodData Central and Public Health England guidance by our editorial team. Last reviewed: 5 September 2026.

Fact-checked against original USDA source data by our editorial team.

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598
calories per 100g
96 calories per 1 tablespoon (16g)
MORiSH high-protein snacks — try alongside
22.2gProtein
22.3gCarbs
51.4gFat
5.0gFibre

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⚖ Kitchen Scales

Quick reference — common serving sizes

AmountCaloriesProtein
1 oz (28g)170 kcal6.3g
100g598 kcal22.2g
1 tablespoon96 kcal3.6g
grams
598kcal
22.2gprotein
22.3gcarbs
51.4gfat
5.0gfibre

A peanut butter contains 598 calories per 100g. A typical 1 tablespoon (16g) provides about 96 calories. Peanut Butter is high in calories and is a good source of protein. Accurate tracking starts with weighing portions — a digital kitchen scale removes all the guesswork.

Peanut Butter Nutrition Facts

NutrientPer 100gPer serving (16g)
Calories598 kcal96 kcal
Protein22.2g3.6g
Carbohydrates22.3g3.6g
of which Sugars10.5g1.7g
Fat51.4g8.2g
of which Saturates10.3g1.6g
Fibre5.0g0.8g
Sodium426.0mg68mg
Potassium558.0mg89mg
Calcium49.0mg8mg
Iron1.7mg0.3mg
Vitamin C0.0mg0.0mg
Vitamin A0.0µg0µg
Selenium4.1µg1µg
Riboflavin (B2)0.2mg0.0mg

% of Daily Value (per 100g)

Based on a standard 2,000-calorie reference diet — the same basis used on nutrition labels in the US and UK.

High-protein options alongside peanut butter

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Have a cat or dog? Check whether peanut butter is safe for your dog or safe for your cat before sharing. Also check the full ingredient breakdown and food safety guide for pregnancy and storage advice. If calorie tracking is part of a broader health check, hormone testing can rule out metabolic factors affecting your results. Tracking supplements too? Check drug and supplement interactions before combining anything new.

Good to know

Cooking method matters here too — boiling can leach some water-soluble vitamins into the cooking water, while steaming or roasting tends to retain more.

Does peanut butter fit your diet?

High-protein diets

At 22.2g of protein per 100g, peanut butter clears the 15g/100g threshold generally used to call a food high-protein — a useful contributor if you're tracking protein intake for muscle maintenance, satiety, or a higher-protein eating pattern.

Fibre intake

Peanut Butter provides 5.0g of fibre per 100g — a meaningful contribution toward the commonly cited 25-30g daily target, which supports digestion and helps with feeling fuller for longer.

Moderation note

Peanut Butter is relatively energy-dense (598 kcal/100g) with 10.3g of saturated fat per 100g — fine as part of a varied diet, worth weighing rather than eyeballing if you're watching saturated fat intake specifically.

Frequently Asked Questions

How many calories in peanut butter per 100g?

Peanut Butter contains 598 calories per 100g, based on USDA reference data.

Is peanut butter high in calories?

A 1 tablespoon of peanut butter (16g) has around 96 calories — roughly 5% of a 2,000-calorie daily intake.

Is peanut butter good for weight loss?

Peanut Butter is fairly calorie-dense at 598 calories per 100g, so portion size matters when losing weight. A 1 tablespoon provides about 96 calories.

How much protein is in peanut butter?

Peanut Butter contains 22.2g of protein per 100g.

Is peanut butter a good source of fibre?

Yes — peanut butter provides 5.0g of fibre per 100g, which is a meaningful contribution toward the commonly cited 28g daily reference intake.

How does peanut butter compare to peanut butter, smooth style, without salt?

Peanut Butter has 598 calories per 100g, close to peanut butter, smooth style, without salt at 598 — 0 calories fewer per 100g. See the full macro breakdown above.

How many servings of peanut butter for 20g of protein?

With 22.2g of protein per 100g, you'd need roughly 90g of peanut butter to reach 20g of protein

Foods with a similar calorie count

Other vegetables closest to peanut butter by calories per 100g:

FoodCaloriesProteinCarbsFat
Peanut Butter (this page)598 kcal22.2g22.3g51.4g
Peanut Butter, Smooth Style, without Salt598 kcal22.2g22.3g51.4g
Peanuts, All Types, Oil-roasted, with Salt599 kcal28.0g15.3g52.5g
Peanuts, All Types, Oil-roasted, without Salt599 kcal28.0g15.3g52.5g
Peanut Butter, Chunky, Vitamin and Mineral Fortified593 kcal26.1g17.7g51.5g
Peanut Butter, Smooth, Vitamin and Mineral Fortified591 kcal25.7g18.8g50.8g
Peanut Butter, Reduced Sodium590 kcal24.0g21.8g49.9g

More kit for peanut butter tracking

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Last updated:

Nutrition data: USDA FoodData Central (public domain, CC0 1.0). Values are per 100g unless stated.