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HomeConvertersNutritionProtein in 100g Beef = 21.5 g

Protein in 100g Beef = 21.5 g | Nutrition

100g of Beef, Round, Top Round, Boneless, Choice, Raw contains 21.5 g of protein. Free converter with serving tables, volume conversion, raw vs cooked, and FAQs. Data from USDA FoodData Central.

Protein in 100g Beef Calculator

100g of Beef, Round, Top Round, Boneless, Choice, Raw contains 21.5 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: 2646173).

Result

100g Beef Protein

21.5 g protein

Computed from 100 g of food and USDA FoodData Central Foundation Foods.

Reverse Calculation

Protein target to food amount

100 g (3.53 oz, 0.42 cups)

Reverse math uses 21.5 g protein per 100 g from USDA FoodData Central Foundation Foods.

Beef Macros by Serving Size

ServingGram EquivalentCalories (kcal)ProteinCarbohydratesFat
50 g50 g70.510.8 g0.4 g2.9 g
75 g75 g105.816.1 g0.6 g4.3 g
100 g100 g14121.5 g0.9 g5.7 g
150 g150 g211.532.3 g1.3 g8.6 g
200 g200 g28243 g1.7 g11.4 g
250 g250 g352.553.8 g2.1 g14.3 g

Beef Macros by Common Serving

ServingWeightCaloriesProteinCarbsFat
RACC114 g16124.5 g1 g6.5 g

Beef Protein Range Around 100g

ServingGram EquivalentProteinCalories
50 g50 g10.8 g71
75 g75 g16.1 g106
100 g100 g21.5 g141
150 g150 g32.3 g212
200 g200 g43 g282
250 g250 g53.8 g353

Beef Macros by Volume Measure

Volume MeasureEquivalent WeightCalories (kcal)ProteinCarbsFat
1 US teaspoon4.9 g6.91.1 g0 g0.3 g
1 US tablespoon14.8 g20.93.2 g0.1 g0.8 g
1 US fluid ounce29.6 g41.76.4 g0.3 g1.7 g
1/4 US cup59.1 g83.312.7 g0.5 g3.4 g
1/3 US cup78.9 g111.217 g0.7 g4.5 g
1/2 US cup118.3 g166.825.4 g1 g6.7 g
1 US cup236.6 g333.650.9 g2 g13.5 g
1 US pint473.2 g667.2101.7 g4 g27 g
1 US quart946.4 g1334.4203.5 g8.1 g53.9 g
1 US gallon3785.4 g5337.4813.9 g32.3 g215.8 g
100 mL100 g14121.5 g0.9 g5.7 g
1 liter1000 g1410215 g8.5 g57 g

Beef Prep-State Logging Check

Prep StateWeightProteinConcentration
Raw100 g21.5 g21.5 g/100 g
Cooked data not listedUse cooked USDA entryDo not inferSeparate cooked record preferred

Beef Nutrient Efficiency Per Calorie

NutrientPer 100 gPer 100 kcal% Daily Value (per 100 g)
Protein21.5 g15.25 g/100 kcal43%
Carbs0.852 g0.6 g/100 kcal0.3%
Fat5.7 g4.04 g/100 kcal7.3%
Sodium45.5 mg32.27 mg/100 kcal2%
Potassium352 mg249.65 mg/100 kcal7.5%
Magnesium22.1 mg15.67 mg/100 kcal5.5%

Beef Dietary Profile

High-protein: Beef delivers 21.5g protein per 100g — qualifies as a high-protein food (≥20g/100g threshold).

Keto-compatible: Low in net carbs (0.852g/100g), making it suitable for ketogenic diets.

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

Common meal contexts: high-protein meal, potassium source.

Beef Benefit Signals

  • Protein dense: Useful when building a high-protein meal or snack. Basis: Protein per 100g is at least 20g..
  • Potassium source: Adds potassium to the day coverage tracker. Basis: Potassium is present in the USDA nutrient record..
  • Low sodium base: Can be easier to fit into sodium-conscious meals before sauces or seasoning. Basis: Sodium per 100g is below common low-sodium meal-planning thresholds..

Beef Daily Nutrient Coverage

NutrientThis servingReferenceCoverageSignal
Protein22 g50 g43%Strong contribution
Sodium46 mg2300 mg2%Low limit contribution
Potassium352 mg4700 mg7%Starter contribution
Calcium4 mg1300 mg0%Starter contribution
Iron1.9 mg18 mg11%Starter contribution
Saturated fat limit1.7 g20 g9%Low limit contribution
Cholesterol limit59 mg300 mg20%Low limit contribution

Smart Protein Substitutes for Beef

FoodEquivalent portionCategoryProtein deltaCalorie deltaSodium delta
Chicken90 gMeat+0 g-1 kcal+60 mg
Beef98 gMeat+0 g-4 kcal-4 mg
Beef102 gMeat+0 g+5 kcal+0 mg
Chicken117 gMeat+0 g+5 kcal+61 mg
Beef broth1344 gMeat+0 g-7 kcal+4658 mg
Beef steak74 gMeat+0 g+12 kcal-45 mg

Beef Condition-Aware Nutrition Notes

TypeContextGuidanceBasis
mayFitweight managementMay fit general meal planning when serving size and preparation match what was logged.No major sodium, saturated fat, sugar, potassium, or allergen flag was detected by the seed collector.

Real-World Beef Serving Sizes

  • RACC (~114g): 24.5 g protein. RACC is listed by USDA at 114g for this food.

Common Beef 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.

Beef Protein — Frequently Asked Questions

How much protein is in 100g of Beef? 100g of Beef contains 21.5 g of protein (USDA FoodData Central). This is considered high-protein.
How much protein is in 1 cup of Beef? One US cup of beef weighs approximately 237g (density: 1000 kg/m³). That serving contains 51 g of protein — computed as 237g ÷ 100 × 21.5.
How many grams of Beef do I need to eat to get 30 g of protein? To reach 30 g of protein from Beef, you need approximately 140g — calculated as (30 ÷ 21.5) × 100 = 140g.
Is Beef high in protein? Yes, Beef is high in protein at 21.5 g per 100g. It ranks among the better sources in its category.
What percentage of daily protein does 100g of Beef provide? 100g of Beef provides 21.5 g of protein, which is 43% of the reference daily intake (50 g/day for adults, based on a 2000-calorie diet). To reach 100% of your daily protein from Beef alone, you would need ~233g.
What are the most common mistakes when measuring Beef 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 Beef as a source of protein per calorie? Beef provides 15.25 g of protein per 100 kcal, making it excellent as a protein-per-calorie source. This is useful for calorie-restricted diets where macronutrient density matters.
What formula does this Beef protein calculator use? The calculator uses protein = weight in grams / 100 x 21.5 g. For example, 100g of Beef gives 21.5 g of protein. Volume entries are first converted to grams using the food density value, then the same per-100g formula is applied.
Is Beef a good food for muscle building or high-protein goals? For muscle building or high-protein goals, Beef is an excellent choice — with 21.5 g of protein per 100g. Beef is also keto-friendly, gluten-free, a high-protein option. For best results, combine Beef with other foods to hit your daily macro targets.
How reliable is the source data for Beef? Beef uses USDA FoodData Central Foundation Foods as the nutrition source, FDC ID 2646173. 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 Beef Protein

  1. Weigh raw. Place your beef 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 Beef Protein to Similar Foods

Chicken Breast Raw ProteinSalmon Atlantic Raw Protein

More Beef Nutrition Pages

Beef Calories

Why Volume ≠ Weight: Beef Density Explained

Beef is dense (~1000 kg/m³ ≈ water). A 1-cup measure holds approximately 237 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 Beef.

Beef 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: Beef, Round, Top Round, Boneless, Choice, Raw (FDC ID: 2646173).

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: Canada
protein
21.5g
|
3.53 oz•2% sodium
Portion: 100gFood fit: 66/100
Serving reality: 3.53 oz, 0.42 cups.
Best benefits
Protein dense: Useful when building a high-protein meal or snack.
Potassium source: Adds potassium to the day coverage tracker.
Low sodium base: Can be easier to fit into sodium-conscious meals before sauces or seasoning.
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
140kcal
protein
22g
carbs
0.85g
fat
5.7g
sodium
46mg
potassium
350mg
magnesium
22mg
caffeine
0mg
calcium
4.07mg
iron
1.9mg
cholesterol
59.3mg
saturated fat
1.7g
Source: USDA FoodData Central Foundation Foods|generic|FDC ID: 2646173•Energy density: 334 kcal/cup