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Heart Rate Zone Calculator

Find your optimal heart rate zones for different exercise intensities

🏃 Understanding Heart Rate Zones

Zone 1 (50-60%)Fat Burn - Light activity, warm-up
Zone 2 (60-70%)Cardio - Moderate exercise, builds endurance
Zone 3 (70-80%)Aerobic - Increases oxygen capacity
Zone 4 (80-90%)Anaerobic - Improves speed
Zone 5 (90-100%)Max Effort - Short bursts only