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HomeConvertersNutritionProtein in 1 tablespoon of Peanut Butter = 3.6 g

Protein in 1 tablespoon of Peanut Butter = 3.6 g | Nutrition

1 tablespoon of Peanut Butter contains 3.6 g of protein. Free converter with serving tables, volume conversion, raw vs cooked, and FAQs. Data from USDA FoodData Central.

Protein in 1 tablespoon of Peanut Butter Calculator

1 tablespoon of Peanut Butter contains 3.6 g of protein. Use the converter above to calculate any weight, volume, or household serving, then compare the tables below. All values from USDA FoodData Central (FDC ID: 2707537).

Result

1 tablespoon Peanut Butter Protein

3.6 g protein

Computed from 16 g of food and USDA FoodData Central Survey/FNDDS Foods.

Reverse Calculation

Protein target to food amount

16.2 g (0.57 oz, 0.06 cups)

Reverse math uses 22.2 g protein per 100 g from USDA FoodData Central Survey/FNDDS Foods.

Peanut Butter Macros by tablespoons

PortionGram EquivalentCalories (kcal)ProteinCarbohydratesFat
1 tablespoon16 g95.73.6 g3.6 g8.2 g
2 tablespoons32 g191.47.1 g7.1 g16.4 g
4 tablespoons64 g382.714.2 g14.3 g32.9 g
6 tablespoons96 g574.121.3 g21.4 g49.3 g
8 tablespoons128 g765.428.4 g28.5 g65.8 g
12 tablespoons192 g1148.242.6 g42.8 g98.7 g
50 g50 g29911.1 g11.2 g25.7 g
75 g75 g448.516.7 g16.7 g38.6 g
100 g100 g59822.2 g22.3 g51.4 g

Peanut Butter Macros by Common Serving

ServingWeightCaloriesProteinCarbsFat
Guideline amount per sandwich32 g1917.1 g7.1 g16.4 g
1 single serving45 g26910 g10 g23.1 g
1 tablespoon16 g963.6 g3.6 g8.2 g
Guideline amount per slice of bread/roll16 g963.6 g3.6 g8.2 g

Peanut Butter Protein Range Around tablespoon = 16 g

PortionGram EquivalentProteinCalories
1 tablespoon16 g3.6 g96
2 tablespoons32 g7.1 g191
4 tablespoons64 g14.2 g383
6 tablespoons96 g21.3 g574
8 tablespoons128 g28.4 g765
12 tablespoons192 g42.6 g1148

Peanut Butter Macros by Volume Measure

Volume MeasureEquivalent WeightCalories (kcal)ProteinCarbsFat
1 US teaspoon5.3 g31.71.2 g1.2 g2.7 g
1 US tablespoon16 g95.73.6 g3.6 g8.2 g
1 US fluid ounce32 g191.47.1 g7.1 g16.4 g
1/4 US cup64 g382.714.2 g14.3 g32.9 g
1/3 US cup85.3 g510.118.9 g19 g43.8 g
1/2 US cup128 g765.428.4 g28.5 g65.8 g
1 US cup256 g1530.956.8 g57.1 g131.6 g
1 US pint512 g3061.8113.7 g114.2 g263.2 g
1 US quart1024 g6123.5227.3 g228.4 g526.3 g
1 US gallon4095.8 g24492.9909.3 g913.4 g2105.2 g
100 mL108.2 g64724 g24.1 g55.6 g
1 liter1082 g6470.4240.2 g241.3 g556.1 g

Peanut Butter Prep-State Logging Check

Prep StateWeightProteinConcentration
Raw16 g3.6 g22.2 g/100 g
Cooked data not listedUse cooked USDA entryDo not inferSeparate cooked record preferred

Peanut Butter Nutrient Efficiency Per Calorie

NutrientPer 100 gPer 100 kcal% Daily Value (per 100 g)
Protein22.2 g3.71 g/100 kcal44.4%
Carbs22.3 g3.73 g/100 kcal8.1%
Fat51.4 g8.6 g/100 kcal65.9%
Sodium426 mg71.24 mg/100 kcal18.5%
Potassium558 mg93.31 mg/100 kcal11.9%
Magnesium168 mg28.09 mg/100 kcal42%

Peanut Butter Dietary Profile

High-protein: Peanut Butter delivers 22.2g protein per 100g — qualifies as a high-protein food (≥20g/100g threshold).

Vegan: Contains no animal products.

Vegetarian: No meat or fish.

Gluten-free: Safe for celiac and gluten-sensitive individuals.

Common meal contexts: high-protein meal, carbohydrate base, fiber support, potassium source.

Peanut Butter Benefit Signals

  • Protein dense: Useful when building a high-protein meal or snack. Basis: Protein per 100g is at least 20g..
  • Fiber contributor: Can help raise daily fiber coverage when portion size fits the meal. Basis: Fiber is present in the USDA nutrient record..
  • Potassium source: Adds potassium to the day coverage tracker. Basis: Potassium is present in the USDA nutrient record..

Peanut Butter Daily Nutrient Coverage

NutrientThis servingReferenceCoverageSignal
Protein4 g50 g7%Starter contribution
Fiber0.8 g28 g3%Starter contribution
Sodium68 mg2300 mg3%Low limit contribution
Potassium89 mg4700 mg2%Starter contribution
Calcium8 mg1300 mg1%Starter contribution
Iron0.3 mg18 mg2%Starter contribution
Saturated fat limit1.6 g20 g8%Low limit contribution
Cholesterol limit0 mg300 mg0%Low limit contribution

Smart Protein Substitutes for Peanut Butter

FoodEquivalent portionCategoryProtein deltaCalorie deltaSodium delta
Peanut butter16 gFat+0 g+0 kcal-68 mg
Peanut Butter16 gFat+0 g+0 kcal-65 mg
Almonds17 gFat+0 g+2 kcal-68 mg
Flaxseed19 gFat+0 g+8 kcal-68 mg
Chia seeds22 gFat+0 g+9 kcal-68 mg
Almond Butter17 gFat+0 g+14 kcal-28 mg

Peanut Butter Condition-Aware Nutrition Notes

TypeContextGuidanceBasis
watchhypertensionWatch sodium and compare lower-sodium alternatives if this is a frequent food.Sodium per 100g is elevated in the USDA nutrient record.
watchheart healthWatch saturated fat if following a heart-health or lipid-focused eating plan.Saturated fat is elevated relative to many whole-food options.
askCliniciankidney cautionAsk a clinician if you follow a potassium-restricted kidney diet.Potassium restrictions are individualized in kidney-related care.

Real-World Peanut Butter Serving Sizes

  • Guideline amount per sandwich (~32g): 7.1 g protein. Guideline amount per sandwich is listed by USDA at 32g for this food.
  • 1 single serving (~45g): 10 g protein. 1 single serving is listed by USDA at 45g for this food.
  • 1 tablespoon (~16g): 3.6 g protein. 1 tablespoon is listed by USDA at 16g for this food.
  • Guideline amount per slice of bread/roll (~16g): 3.6 g protein. Guideline amount per slice of bread/roll is listed by USDA at 16g for this food.

Common Peanut Butter Measurement Mistakes

  1. Logging a different prep state than the food actually eaten can change calories and macro density.
  2. Sauces, oil, breading, and added ingredients are not included unless they are part of this USDA food description.
  3. Assuming every household serving has the same gram weight; use the listed serving anchors when available.

Peanut Butter Protein — Frequently Asked Questions

How much protein is in 100g of Peanut Butter? 100g of Peanut Butter contains 22.2 g of protein (USDA FoodData Central). This is considered high-protein.
How much protein is in 1 cup of Peanut Butter? One US cup of peanut butter weighs approximately 256g (density: 1082 kg/m³). That serving contains 56.8 g of protein — computed as 256g ÷ 100 × 22.2.
How many grams of Peanut Butter do I need to eat to get 30 g of protein? To reach 30 g of protein from Peanut Butter, you need approximately 135g — calculated as (30 ÷ 22.2) × 100 = 135g.
Is Peanut Butter high in protein? Yes, Peanut Butter is high in protein at 22.2 g per 100g. It ranks among the better sources in its category.
What percentage of daily protein does 100g of Peanut Butter provide? 100g of Peanut Butter provides 22.2 g of protein, which is 44.4% of the reference daily intake (50 g/day for adults, based on a 2000-calorie diet). To reach 100% of your daily protein from Peanut Butter alone, you would need ~225g.
What are the most common mistakes when measuring Peanut Butter protein? 1. Logging a different prep state than the food actually eaten can change calories and macro density. 2. Sauces, oil, breading, and added ingredients are not included unless they are part of this USDA food description. 3. Assuming every household serving has the same gram weight; use the listed serving anchors when available.
How efficient is Peanut Butter as a source of protein per calorie? Peanut Butter provides 3.71 g of protein per 100 kcal, making it average as a protein-per-calorie source. This is useful for calorie-restricted diets where macronutrient density matters.
What formula does this Peanut Butter protein calculator use? The calculator uses protein = weight in grams / 100 x 22.2 g. For example, 100g of Peanut Butter gives 22.2 g of protein. Volume entries are first converted to grams using the food density value, then the same per-100g formula is applied.
Is Peanut Butter a good food for muscle building or high-protein goals? For muscle building or high-protein goals, Peanut Butter is an excellent choice — with 22.2 g of protein per 100g. Peanut Butter is also suitable for vegans, suitable for vegetarians, gluten-free, a high-protein option. For best results, combine Peanut Butter with other foods to hit your daily macro targets.
How reliable is the source data for Peanut Butter? Peanut Butter uses USDA FoodData Central Survey/FNDDS Foods as the nutrition source, FDC ID 2707537. Gram-based calculations use the per-100g source values, while cup and spoon estimates depend on the listed density and should be treated as practical serving estimates.

How to Calculate Peanut Butter Protein

  1. Weigh raw. Place your peanut butter on a kitchen scale before cooking to get the most accurate starting weight.
  2. Enter weight into the calculator. Select your unit (g, oz, lb, or cup) and hit Calculate.
  3. Read the result. The calculator shows protein content for your exact portion.
  4. Compare servings. Use the serving range table below to quickly compare protein across portion sizes.
  5. Log to your tracker. Enter the raw weight and raw entry in your nutrition app for consistent macro tracking.

Compare Peanut Butter Protein to Similar Foods

Almonds Raw ProteinPeanut Butter Smooth Protein

More Peanut Butter Nutrition Pages

Why Volume ≠ Weight: Peanut Butter Density Explained

Peanut Butter is dense (~1082 kg/m³ ≈ water). A 1-cup measure holds approximately 256 g.

Why does density matter? The same volume can hold very different amounts of food depending on how dense it is. Oats (350 kg/m³) are light and airy — 1 cup = ~80 g. Water has a density of 1000 kg/m³ — 1 cup = 236 g. This is why nutrition labels use weight (grams), not volume — it's a more reliable measure.

Formula: mass (g) = volume (mL) × density (kg/m³) ÷ 1,000. This calculator uses this formula automatically when you enter a volume measure for Peanut Butter.

Peanut Butter Page Quality Signals

Source, density, prep-state, serving, and allergen checks used to decide whether this page is safe to promote from generated to indexed.

Data Sources & Methodology

Data source: USDA FoodData Central. Referenced entries: Peanut Butter (FDC ID: 2707537).

Computation method: Macro values are calculated by multiplying the food's per-100g value by the requested weight in grams, then dividing by 100. Volume inputs are first converted to grams using the food's density (kg/m³) from USDA data, then the same formula applies: protein = (weight_g / 100) × proteinPer100g.

Accuracy note: Macro values represent averages across measured samples; individual items may vary ±5–10% depending on brand, farming method, and preparation technique. For clinical nutrition, consult a registered dietitian.

Update policy: Macro values are reviewed quarterly against USDA FoodData Central updates. Page last verified: 2026.

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Release 2.5Market: United Kingdom
protein
3.6g
|
0.56 oz•3% sodium
Portion: 16gFood fit: 40/100
Serving reality: 0.56 oz, 0.06 cups.
Best benefits
Protein dense: Useful when building a high-protein meal or snack.
Fiber contributor: Can help raise daily fiber coverage when portion size fits the meal.
Potassium source: Adds potassium to the day coverage tracker.
Day coverage starter
What this serving contributes if logged today.
Current serving
Condition-aware guardrails
Top flags only; details stay clinician-safe.
Full micronutrients and nutritional profile
calories
96kcal
protein
3.6g
carbs
3.6g
fat
8.2g
sodium
68mg
potassium
89mg
magnesium
27mg
caffeine
0mg
fiber
5g
sugar
10.5g
calcium
49mg
iron
1.74mg
cholesterol
0mg
saturated fat
10.3g
vitamin d
0mcg
vitamin b12
0mcg
omega-3
0.03g
Source: USDA FoodData Central Survey/FNDDS Foods|generic|FDC ID: 2707537•Energy density: 1531 kcal/cup