The Keto Macros Calculator helps determine daily intake of fat, protein, and carbohydrates based on total calories and desired macronutrient ratios for a ketogenic diet. Users input their daily calories and the percentage of calories from fat, protein, and carbs, and the calculator outputs grams per day for each macro. This tool supports planning a ketogenic diet to achieve nutritional goals, but individualized adjustments may be needed, and consulting a healthcare or nutrition professional is recommended for accurate planning.