BMR Calculator

Basal Metabolic Rate (BMR) represents the minimum number of calories your body burns while performing basic, life-sustaining biological functions at rest (such as cellular repair, circulation, breathing, and temperature maintenance).

• •Men: BMR = (10 × weight in kg) + (6.25 × height in cm) - (5 × age in years) + 5
• •Women: BMR = (10 × weight in kg) + (6.25 × height in cm) - (5 × age in years) - 161
• •Endorsed by the Academy of Nutrition and Dietetics as the most reliable predictive formula for non-obese and obese adults.
• •Accounts for approximately 60% to 75% of your total daily caloric expenditure.

While clinical formulas provide valuable reference ranges, biological individuality plays a critical role in human physiology.

• •Equation estimates assume average body composition and do not directly measure lean muscle mass percentage.
• •Individuals with exceptionally high muscle mass burn more calories at rest than standard equations predict.
• •Endocrine disorders (hypothyroidism, Cushing syndrome) significantly alter real-world resting metabolic rate.
• •Direct measurement requires clinical indirect calorimetry in an overnight fasting laboratory environment.