Free Fitness Tool

Macro Calculator

Get precise macronutrient targets with body weight-based protein calculations and custom macro splits.

Calculate Your Macros
Choose Your Units

Using centimeters and kilograms

Custom Macro Distribution
Set your own protein, carbs, and fats percentages
Advanced Mode
Uses Katch-McArdle formula for precise lean body mass calculations
Your Macro Targets

Enter your details above to discover your optimal macro targets

Professional Analysis: This calculator uses scientifically-backed formulas including Mifflin-St Jeor BMR calculations and activity-adjusted TDEE for accurate macro recommendations. Protein targets are calculated based on body weight (1.2-1.8g per kg depending on goal) for optimal muscle preservation and growth. When body fat percentage is provided in advanced mode, it switches to the Katch-McArdle formula (370 + 21.6 × LBM), which is the gold standard for body composition-based calorie calculations. As your personal trainer, I'll help you fine-tune these recommendations based on your specific metabolism, food preferences, and training intensity.