A macros calculator is a tool designed to determine optimal macronutrient intake based on individual characteristics and goals. Users input information such as age, weight, height, activity level, and desired outcomes (weight loss, maintenance, or muscle gain). The calculator then computes the recommended daily intake of protein, carbohydrates, and fats, either as percentages of total calories or in grams. This information helps individuals plan their meals effectively to achieve nutritional balance and meet their specific dietary objectives. Many online platforms and mobile apps offer macros calculators, providing a convenient way for users to tailor their nutrition to their unique needs.