This Calorie Calculator helps you estimate your daily energy needs based on age, gender, weight, height, and activity level. It uses the Mifflin–St Jeor equation to calculate your Basal Metabolic Rate (BMR) and then applies an activity multiplier to find your Total Daily Energy Expenditure (TDEE). With this information, you can determine how many calories you need to maintain, lose, or gain weight. The calculator also provides a suggested macronutrient breakdown for protein, carbohydrates, and fats, making it easier to plan balanced meals and track your nutrition goals.