1. What Is BMR Calculator?

The BMR (Basal Metabolic Rate) calculator estimates the number of calories your body needs to perform basic life-sustaining functions at rest. It represents the minimum energy required to maintain vital functions such as breathing, circulation, and cell production.

2. How Does the Calculator Work?

The calculator uses the BMR equation:

Where:

• \( weight \) — Body weight in kilograms (kg)
• \( height \) — Height in centimeters (cm)
• \( age \) — Age in years

Explanation: This equation calculates the basal metabolic rate based on your body's basic energy requirements while at complete rest.

3. Importance of BMR Calculation

Details: Knowing your BMR is essential for creating effective weight management plans, whether for weight loss, maintenance, or gain. It serves as the foundation for determining your total daily energy expenditure.

4. Using the Calculator

Tips: Enter your weight in kilograms, height in centimeters, and age in years. All values must be valid positive numbers to get an accurate BMR calculation.

5. Frequently Asked Questions (FAQ)

Q1: What factors affect BMR?
A: BMR is influenced by age, gender, weight, height, body composition, and genetic factors. Muscle mass typically increases BMR while fat decreases it.

Q2: How often should I recalculate my BMR?
A: You should recalculate your BMR whenever your weight changes significantly (5+ kg) or as you age, since BMR decreases with age.

Q3: Is BMR the same as daily calorie needs?
A: No, BMR represents only basal metabolic needs. Total daily energy expenditure includes BMR plus calories burned through physical activity and food digestion.

Q4: Why is there a constant value of -161 in the equation?
This is a standard adjustment factor in the BMR calculation formula that accounts for average metabolic differences.

Q5: Can BMR be increased?
A: Yes, building muscle mass through strength training, maintaining proper hydration, and ensuring adequate protein intake can help increase your BMR over time.