BMR Calculator: Calculate Your Basal Metabolic Rate
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Understanding Basal Metabolic Rate (BMR)
Basal Metabolic Rate (BMR) represents the minimum amount of energy your body needs to perform basic life-sustaining functions while at rest. Understanding your BMR is crucial for effective weight management and maintaining a healthy lifestyle.
How is BMR Calculated?
We use the Mifflin-St Jeor equation, which is considered one of the most accurate formulas for calculating BMR:
BMR = (10 × weight in kg) + (6.25 × height in cm) - (5 × age in years) + 5 BMR = (10 × weight in kg) + (6.25 × height in cm) - (5 × age in years) - 161 Activity Levels and Daily Calorie Needs
Sedentary (BMR × 1.2)
Little or no exercise, desk job
Lightly Active (BMR × 1.375)
Light exercise 1-3 days per week
Moderately Active (BMR × 1.55)
Moderate exercise 3-5 days per week
Very Active (BMR × 1.725)
Hard exercise 6-7 days per week
Extra Active (BMR × 1.9)
Very hard exercise & physical job or training twice per day
Frequently Asked Questions
What is BMR?
BMR is the number of calories your body burns while performing basic life-sustaining functions like breathing, circulating blood, and maintaining organ functions while at rest.
How accurate is BMR calculation?
BMR calculations using the Mifflin-St Jeor equation are generally accurate for most people. However, factors like muscle mass, genetics, and medical conditions can affect actual BMR.
How can I use my BMR for weight management?
Your BMR helps determine your total daily calorie needs. For weight loss, consume fewer calories than your total daily expenditure; for weight gain, consume more. Always maintain a safe calorie deficit or surplus.