BMR Calculator (Basal Metabolic Rate)

Free BMR Calculator - Calculate Your Basal Metabolic Rate

Our free BMR calculator helps you calculate your Basal Metabolic Rate (BMR), which is the number of calories your body burns at rest to maintain basic physiological functions like breathing, circulation, and cell production.

This calculator uses the Mifflin-St Jeor Equation, which is considered one of the most accurate BMR formulas. Your BMR accounts for approximately 60-75% of your total daily calorie expenditure. Understanding your BMR is essential for weight management, as it helps you determine how many calories you need to maintain, lose, or gain weight.

Activity Level Guide

• Sedentary: Little or no exercise (multiply BMR by 1.2)
• Light: Light exercise 1-3 days/week (multiply BMR by 1.375)
• Moderate: Moderate exercise 3-5 days/week (multiply BMR by 1.55)
• Active: Hard exercise 6-7 days/week (multiply BMR by 1.725)
• Very Active: Very hard exercise, physical job (multiply BMR by 1.9)

Note: BMR calculations are estimates. Actual calorie needs may vary based on individual factors. Consult with a healthcare professional or registered dietitian for personalized nutrition advice.

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