Heart Rate Calculator
Find your target heart rate zones for optimal exercise
Heart Rate Zones
- Zone 1 (50-60%): Very light activity, warm-up
- Zone 2 (60-70%): Light exercise, fat burning
- Zone 3 (70-80%): Moderate exercise, aerobic
- Zone 4 (80-90%): Hard exercise, anaerobic
- Zone 5 (90-100%): Maximum effort
Tips
Use the Karvonen formula for more accurate results if you know your resting heart rate.