1. What is Basic Metabolic Rate?

Basic Metabolic Rate (BMR) is the number of calories your body needs to accomplish its most basic (basal) life-sustaining functions at rest. This includes breathing, circulation, cell production, nutrient processing, protein synthesis, and ion transport.

2. How Does the Calculator Work?

The calculator uses the Mifflin-St Jeor Equation for women:

Where:

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

Explanation: This equation estimates the energy (in kcal) that your body needs to maintain basic physiological functions at complete rest.

3. Importance of BMR Calculation

Details: Knowing your BMR helps determine your total daily energy needs. It's the foundation for weight management plans, whether your goal is weight loss, maintenance, or gain.

4. Using the Calculator

Tips: Enter your weight in kg, height in cm, and age in years. For accurate results, measure your weight and height in the morning before eating or drinking.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is the BMR calculation?
A: The Mifflin-St Jeor Equation is about 90% accurate for most people, but individual variations in body composition can affect actual BMR.

Q2: What factors affect BMR?
A: Muscle mass, body size, age, gender, genetics, hormonal status, and environmental temperature can all influence BMR.

Q3: How often should I recalculate my BMR?
A: Recalculate whenever your weight changes significantly (5+ kg) or annually as you age.

Q4: Is BMR the same as daily calorie needs?
A: No, BMR is just your resting metabolic rate. Total daily energy expenditure includes physical activity and food digestion.

Q5: Why is the equation different for women?
A: Women typically have higher body fat percentages and lower muscle mass than men, which affects metabolic rate.