Protein Intake Calculator

🧬 Scientific Protein Calculator

Evidence-based protein requirements using validated formulas

πŸ“š Research-Based Calculator This calculator uses peer-reviewed formulas from the International Society of Sports Nutrition (ISSN), American College of Sports Medicine (ACSM), and recent meta-analyses on protein requirements.
πŸ‘€ Personal Information
πŸ‘¨
Male
πŸ‘©
Female
Body Fat Percentage (Optional)
If known, this allows for lean body mass calculations. Leave blank for body weight-based calculations.
🎯 Primary Goal
❀️
General Health
RDA + healthy margin
πŸ“‰
Weight Loss
Preserve muscle in deficit
πŸ’ͺ
Muscle Building
Optimize muscle protein synthesis
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Endurance Sport
Support training recovery
πŸ‹οΈβ€β™€οΈ Training Status & Activity
πŸͺ‘
Sedentary
Minimal physical activity
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Recreationally Active
2-3 sessions/week
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Trained
4-6 sessions/week, 1+ years
πŸ†
Highly Trained
Daily training, 3+ years
πŸ₯©
Daily Protein Requirement
Per Kg Body Weight
g/kg body weight
Per Kg Lean Mass
g/kg lean body mass
Post-Workout Dose
within 2 hours
Per Meal Target
optimal per meal
πŸ“Š Scientific Formula Breakdown
RDA Baseline (0.8 g/kg)
ISSN Recommendation
ACSM Guidelines
Lean Body Mass Method
Evidence-Based Target
⏰ Optimal Protein Timing (Research-Based)
πŸ”¬ Scientific Evidence & Safety

This protein intake calculator is a tool that helps estimate the daily amount of protein that an individual needs based on various factors, such as their age, gender, weight, height, and physical activity level.

Protein is an essential nutrient that is important for building and repairing tissues, producing enzymes and hormones, and maintaining a healthy immune system.

Consuming adequate amounts of protein is especially important for individuals who are physically active or looking to build muscle mass.

This protein intake calculator is based on age, sex, height, weight, activity levels, and goals:

Protein Intake (grams/day) = (Weight in kilograms Γ— Activity Factor) Γ— Goal Factor

Where:

  • Weight is in kilograms

Apctivity Factor is a value that reflects the individual’s physical activity level, which can range from 1.2 (sedentary) to 2.0 (highly active). The value can be determined using the following chart:

  • Sedentary (little or no exercise) = 1.2
  • Lightly active (light exercise or sports 1-3 days/week) = 1.375
  • Moderately active (moderate exercise or sports 3-5 days/week) = 1.55
  • Very active (hard exercise or sports 6-7 days/week) = 1.725
  • Super active (very hard exercise or sports, physical job, training twice a day) = 1.9

Goal Factor is a value that reflects the individual’s health goals, which can range from weight maintenance to muscle gain. The value can be determined using the following chart:

  • Weight maintenance = 1.0
  • Weight loss = 0.8
  • Muscle gain = 1.2-1.7 (depending on the individual’s level of physical activity)

Disclaimer

This protein intake calculator uses a formula that takes into account the individual’s body weight and physical activity level to determine their recommended daily protein intake. It’s important to note that the recommended daily protein intake can vary depending on an individual’s health goals and dietary preferences.