1. What is Zone 2 Heart Rate?

Zone 2 heart rate refers to the moderate intensity exercise zone where you're working at 60-70% of your maximum heart rate. This zone is optimal for building aerobic base, improving endurance, and promoting fat metabolism.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• 220 - age — Estimated maximum heart rate
• 0.60 to 0.70 — Percentage range for Zone 2

Explanation: The formula first estimates your maximum heart rate based on age, then calculates the 60-70% range that defines Zone 2 training.

3. Importance of Zone 2 Training

Details: Training in Zone 2 improves mitochondrial function, increases aerobic capacity, enhances fat utilization, and allows for greater training volume with less stress on the body.

4. Using the Calculator

Tips: Enter your age in years (must be between 1-120). The calculator will show your estimated Zone 2 heart rate range in beats per minute.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is the 220-age formula?
A: It's a general estimate. Individual max HR can vary ±10-20 bpm. For more accuracy, consider a max HR test under medical supervision.

Q2: What are the other heart rate zones?
A: Typically 5 zones: Zone 1 (50-60%), Zone 2 (60-70%), Zone 3 (70-80%), Zone 4 (80-90%), Zone 5 (90-100%).

Q3: How long should I train in Zone 2?
A: For base building, 60-90 minutes per session is common. Elite athletes may do 2+ hours in Zone 2.

Q4: Can I talk during Zone 2 exercise?
A: Yes, you should be able to hold a conversation comfortably (the "talk test").

Q5: Should everyone use the same Zone 2 range?
A: Highly trained athletes might use lactate threshold testing for more personalized zones.