Protein Intake Calculator – How Much Protein Do You Need Per Day?
Use our protein intake calculator to determine your optimal daily protein consumption. Whether you're building muscle, losing weight, or maintaining fitness, get personalized recommendations.
How to Use This Protein Intake Calculator
Select your unit system
Choose metric (kilograms) or imperial (pounds) for your weight measurement. The calculator handles the conversion automatically.
Enter your weight and activity level
Input your current body weight and select the activity level that best matches your lifestyle and fitness goals.
Get your personalized recommendation
See your optimal daily protein intake range based on scientific research for your specific goals and activity level.
Protein Intake Recommendations by Goal
Sedentary Adults: 0.8g/kg
Minimum for basic bodily functions and preventing deficiency — not optimal for health or body composition
Active Individuals: 1.0-1.4g/kg
Supports regular exercise, maintains muscle mass, and aids recovery from moderate training
Muscle Building: 1.8-2.2g/kg
Maximizes muscle protein synthesis for strength training and hypertrophy goals
Weight Loss: 1.6-2.4g/kg
Higher intake preserves muscle during calorie deficit and increases satiety for better adherence
High-Protein Food Reference
| Food Source | Serving Size | Protein |
|---|---|---|
| Chicken Breast | 100g cooked | 31g |
| Salmon | 100g cooked | 25g |
| Eggs | 2 large | 12g |
| Greek Yogurt | 170g container | 17g |
| Cottage Cheese | 100g | 11g |
| Lentils | 100g cooked | 9g |
| Tofu | 100g | 8g |
| Whey Protein | 1 scoop (30g) | 24g |
Frequently Asked Questions
How much protein do I need per day?
It depends on your goals. Sedentary adults need 0.8g per kg of body weight. Active individuals benefit from 1.2-1.6g/kg. Those building muscle or losing weight may need 1.6-2.2g/kg for optimal results.
Can I eat too much protein?
For healthy people, high protein intake (up to 3g/kg) appears safe long-term. Those with kidney disease should consult a doctor. Most people naturally stop eating more protein as it's very satiating.
Is plant protein as good as animal protein?
Plant proteins are often incomplete (missing some amino acids), but eating varied plant sources throughout the day provides all essential amino acids. You may need slightly more total protein on a plant-based diet.
When should I eat protein?
Spread protein across 3-5 meals for best results. Aim for 20-40g per meal to maximize muscle protein synthesis. Post-workout protein within 2 hours supports recovery, but total daily intake matters most.
Do I need protein powder?
No — protein powder is just convenient food, not a requirement. You can hit your targets with whole foods. Powder works well for post-workout shakes or when you need a quick protein boost between meals.
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