IIFYM Calculator

About This Tool

This IIFYM calculator is a dedicated tool for bodybuilding enthusiasts looking to optimize their nutrition intake. It calculates your daily caloric needs using the Mifflin-St Jeor equation, adjusted for activity level and goals.
By inputting your body weight, age, gender, activity level, and desired outcome—whether to gain muscle, lose fat, or maintain weight—the calculator provides personalized daily macro targets for protein, carbohydrates, and fats.
These targets help users plan meals that align with their fitness objectives and support muscle growth or fat loss. The tool features a simple user interface that guides you through data entry and displays results in an easy-to-understand format, including calorie totals and macro breakdowns.
Ideal for athletes, bodybuilders, personal trainers, or anyone needing precise nutritional data, this calculator simplifies macro tracking and supports healthier, goal-oriented eating habits.

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