TDEE Calculator

A TDEE Calculator is an evidence-based metabolic health utility that calculates your Total Daily Energy Expenditure and Basal Metabolic Rate (BMR) using the clinically validated Mifflin-St Jeor and Katch-McArdle equations. It factors in biological sex, age, height, body weight, and physical activity multipliers (ranging from sedentary to athlete) to determine the exact number of daily calories required to maintain current body weight. Fitness enthusiasts, dietitians, bodybuilders, and healthcare professionals use this calculator to establish personalized daily caloric targets, calculate healthy 500-calorie deficits for fat loss, configure calorie surpluses for muscle hypertrophy, and compute macronutrient distributions (protein, carbohydrate, and fat grams). Running completely client-side in your browser, your personal health metrics, body weight measurements, fitness goals, and caloric targets are calculated in local device memory without remote server transmission or health data tracking.