Calculate your Basal Metabolic Rate (BMR) and daily calorie needs based on your activity level.
Muscle tissue burns more calories than fat, even at rest. Strength training can boost your metabolism.
Water is essential for metabolism. Even mild dehydration can slow your metabolic rate.
Protein has a higher thermic effect than carbs or fat, meaning you burn more calories digesting it.
Our free BMR Calculator helps you determine your Basal Metabolic Rate - the number of calories your body needs at complete rest. Whether you're planning a weight loss program, designing a fitness regimen, or optimizing your nutrition plan, this tool provides accurate calculations based on established scientific formulas.
Calculate your daily calorie requirements based on activity level, understand your metabolic baseline, and make informed decisions about your health and fitness goals with our comprehensive BMR and TDEE calculator.
Calculate using both Mifflin-St Jeor and Harris-Benedict equations for comprehensive metabolic rate assessment and comparison.
Get your Total Daily Energy Expenditure based on activity level, plus calorie targets for weight loss and muscle gain.
Receive specific calorie recommendations for maintenance, weight loss (500 cal deficit), or weight gain (500 cal surplus).
Work with both metric (cm, kg) and imperial (feet, inches, pounds) measurement systems for global accessibility.
Used by nutritionists, personal trainers, athletes, and health-conscious individuals worldwide. No registration required - start calculating your metabolic needs instantly!
Basal Metabolic Rate (BMR) is the number of calories your body needs to perform basic life-sustaining functions at complete rest. Understanding your BMR is crucial for creating effective weight management plans and nutritional strategies.
BMR represents calories burned at complete rest, while Total Daily Energy Expenditure (TDEE) includes all daily activities and exercise. TDEE = BMR × Activity Multiplier, giving you total daily calorie needs.
The Mifflin-St Jeor equation is generally considered more accurate for most people today, while the Harris-Benedict equation is an older standard. Our calculator provides both for comparison and comprehensive analysis.
Recalculate your BMR every 10-15 pounds of weight change or if your activity level significantly changes. BMR decreases with weight loss and age, so regular updates ensure accurate calorie targets.