The Nutrition Calculator estimates your total daily intake of key nutrients such as carbohydrates, protein, fats, fiber, sugar, and sodium. It calculates the total calorie contribution from macronutrients using standard conversion values—4 calories per gram for carbohydrates and protein, and 9 calories per gram for fats. This tool helps users track their overall diet quality and balance between nutrients, providing insights into whether their food intake aligns with health and fitness goals. It serves as a simple way to monitor calorie intake and maintain a healthy nutritional balance throughout the day.