1. What is Basal Metabolic Rate (BMR)?

Basal Metabolic Rate (BMR) 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
• +5 — Additional constant for males
• -161 — Additional constant for females

Explanation: This equation estimates the calories your body burns at complete rest, accounting for differences in body composition and metabolism between genders.

3. Importance of BMR Calculation

Details: Knowing your BMR is essential for creating effective weight management plans, determining daily calorie needs, and understanding your body's basic energy requirements for maintaining optimal health.

4. Using the Calculator

Tips: Enter your weight in kilograms, height in centimeters, age in years, and select your gender. All values must be valid positive numbers for accurate results.

5. Frequently Asked Questions (FAQ)

Q1: What factors affect BMR?
A: BMR is influenced by age, gender, body 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 significant weight loss/gain or muscle mass changes.

Q3: How is BMR different from TDEE?
A: BMR is calories burned at complete rest, while Total Daily Energy Expenditure (TDEE) includes all daily activities and exercise.

Q4: Can I increase my BMR?
A: Yes, through strength training to build muscle, proper nutrition, adequate sleep, and staying hydrated.

Q5: How accurate is this BMR calculation?
A: This provides a good estimate for most people, but individual variations exist. For precise measurements, medical testing like indirect calorimetry is recommended.