1. What is the Fat Burning Zone?

The Fat Burning Zone (FBZ) is the heart rate range where your body burns the highest percentage of calories from fat during exercise. It's typically 50-70% of your maximum heart rate.

2. How Does the Calculator Work?

The calculator uses the Fat Burning Zone formula:

Where:

• \( MHR \) — Maximum Heart Rate (bpm)
• \( 0.5 \) — Lower bound multiplier
• \( 0.7 \) — Upper bound multiplier

Explanation: Exercising within this heart rate range optimizes fat burning while maintaining sustainable activity.

3. Importance of Fat Burning Zone

Details: Training in this zone is ideal for weight loss, improving metabolic efficiency, and building endurance without excessive strain.

4. Using the Calculator

Tips: Enter your maximum heart rate in beats per minute (bpm). For most accurate results, use a measured MHR from a stress test rather than age-predicted values.

5. Frequently Asked Questions (FAQ)

Q1: How do I find my maximum heart rate?
A: The most accurate method is a supervised stress test. The common formula (220 - age) is only an estimate.

Q2: Is this the best zone for weight loss?
A: While it burns a higher percentage of fat calories, higher intensity zones burn more total calories overall.

Q3: How long should I stay in this zone?
A: Beginners should aim for 20-30 minutes, gradually increasing to 45-60 minutes as fitness improves.

Q4: What exercises keep me in this zone?
A: Brisk walking, light jogging, cycling, or swimming at moderate intensity typically fall in this range.

Q5: Does this zone vary by fitness level?
A: Yes, fit individuals may burn fat effectively at higher intensities due to improved metabolic adaptation.