Basal Metabolic Rate Calculator

Calculate your Basal Metabolic Rate (BMR) and daily calorie needs based on your personal metrics and activity level.

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عن هذه الأداة

This BMR (Basal Metabolic Rate) calculator uses the scientifically validated Mifflin-St Jeor equation to determine how many calories your body needs at rest. By entering your age, gender, weight, height, and activity level, you'll get your BMR and TDEE (Total Daily Energy Expenditure) - the calories you burn daily. The tool also provides calorie recommendations for weight loss, maintenance, and weight gain goals, helping you make informed nutrition decisions.

Save your calculation history with a free account

كيفية الاستخدام

Select your gender (male/female)
Enter your age in years
Enter your weight in kilograms or pounds (use the toggle)
Enter your height in centimeters or feet/inches (use the toggle)
Select your typical activity level from sedentary to very active
Click 'Calculate BMR' to see your results
View your BMR, TDEE, and calorie recommendations for different goals

Frequently Asked Questions

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What is BMR?

BMR (Basal Metabolic Rate) is the number of calories your body needs to perform basic life-sustaining functions like breathing, circulation, and cell production while at complete rest.

Which equation does this calculator use?

This calculator uses the Mifflin-St Jeor equation, which is considered the most accurate for calculating BMR in healthy adults according to the American Dietetic Association.

What is TDEE?

TDEE (Total Daily Energy Expenditure) is your BMR multiplied by an activity factor. It represents the total calories you burn in a day including physical activity and digestion.

How accurate is this calculator?

While the Mifflin-St Jeor equation is scientifically validated, individual variations in metabolism, body composition, and health conditions can affect accuracy. Use results as a starting point and consult a healthcare professional for personalized advice.

Can I use this for weight loss planning?

Yes, the calculator provides calorie recommendations for weight loss (typically 500 calories below TDEE for ~1 lb/week loss), maintenance, and weight gain. Always combine calorie adjustments with balanced nutrition and exercise.

Need to run multiple calculations?

Create a free account today to unlock unlimited daily runs, access advanced parameters, save your history, and request custom features.

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