Protein Intake Calculator
Calculate daily protein needs based on weight, goal, and activity level. See food sources.
Daily Protein Target
62g
0.8g per kg body weight
Per Meal
21g
Meals Per Day
3
Protein in Common Foods
| Chicken Breast (3 oz) | 31g |
| Greek Yogurt (1 cup) | 15g |
| Tofu (1/2 cup) | 10g |
| Egg (1 large) | 6g |
| Salmon (3 oz) | 22g |
| Black Beans (1/2 cup) | 8g |
| Whey Protein Scoop | 25g |
Protein needs vary based on individual factors including age, health status, and training intensity. These are general guidelines — consult a dietitian for personalized recommendations.
Use the Protein Intake Calculator above to calculate your results. Enter your values and see instant results — all calculations run in your browser.
Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.
How It Works
Our Protein Intake Calculator helps you determine your optimal daily protein needs, a crucial factor for muscle growth, weight management, and overall health. Understanding your protein requirements is essential in 2026, as dietary trends and scientific understanding continue to evolve, emphasizing personalized nutrition for effective results. This tool allows you to tailor your intake based on your unique body, lifestyle, and fitness aspirations.
This calculator utilizes a multi-factor formula, beginning with your body weight in kilograms, then multiplying by a protein coefficient ranging from 0.8g to 2.2g per kg, based on your selected activity level and goal. For instance, a sedentary individual aiming for general health might use 0.8g/kg, while an elite athlete in a bulking phase might target 2.0-2.2g/kg. This coefficient is further adjusted by a small percentage (up to +10%) if your goal is significant muscle gain or fat loss, reflecting 2026 nutritional guidelines that acknowledge increased protein needs during these phases for optimal body composition.
A common mistake is underestimating protein needs, especially for active individuals or those aiming for significant body composition changes. Conversely, excessively high protein intake without adequate hydration can put a strain on kidneys, so balance is key. Remember that protein quality matters; prioritize complete protein sources and distribute your intake evenly throughout the day for better absorption and utilization.
Example: Sarah's Protein Needs for Marathon Training
- 1 Sarah weighs 65 kg, is training for a marathon (high activity level), and her goal is to maintain muscle mass and aid recovery.
- 2 The calculator applies a coefficient of 1.6g/kg for her activity level and goal. 65 kg * 1.6 g/kg = 104 grams of protein per day.
- 3 Sarah's estimated daily protein intake is 104 grams.
- 4 To meet this, Sarah could aim for roughly 25-30 grams of protein per meal across 3-4 meals, supplemented with protein-rich snacks. Excellent sources include lean chicken breast, Greek yogurt, lentils, and protein powder. In 2026, she might also consider novel plant-based protein alternatives like cultivated meat or advanced soy isolates to diversify her intake.
Source: CDC · Last updated: April 2026
Frequently Asked Questions
How much protein should I eat to build muscle?
Can I eat too much protein?
What are the best high-protein foods?
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