1. What is BMR?

BMR (Basal Metabolic Rate) is 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 size and age, providing an estimate of your daily calorie needs at complete rest.

3. Importance of BMR Calculation

Details: Knowing your BMR is essential for weight management, creating effective diet plans, and understanding your body's energy requirements. It serves as the foundation for calculating your total daily energy expenditure (TDEE).

4. Using the Calculator

Tips: Enter your weight in kilograms, height in centimeters, and age in years. All values must be valid (weight > 0, height > 0, age between 1-120). For accurate results, use your most recent measurements.

5. Frequently Asked Questions (FAQ)

Q1: What factors affect BMR?
A: BMR is influenced by age, gender, body size and composition, genetics, and hormonal factors. Muscle mass increases BMR while fat decreases it.

Q2: How often does BMR change?
A: BMR decreases with age (about 1-2% per decade after age 20) and changes with weight fluctuations. Significant muscle gain or weight loss will affect your BMR.

Q3: What's the difference between BMR and RMR?
A: BMR measures energy expenditure in a fasting state upon waking, while RMR (Resting Metabolic Rate) is measured under less strict conditions. They are often used interchangeably.

Q4: How can I increase my BMR?
A: Building muscle through strength training, staying hydrated, getting enough sleep, and eating adequate protein can help increase your metabolic rate.

Q5: Should I use BMR for weight loss planning?
A: Yes, BMR is the starting point for calculating your total daily calorie needs. For weight loss, create a calorie deficit based on your TDEE (BMR multiplied by activity level).