❀️ Health

Heart Rate Calculator

Find your maximum heart rate and target training zones based on your age and resting heart rate. Includes fat-burning, aerobic, threshold and peak zones with exact BPM ranges.

yr
BPM
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Enter your age to get started

Your age is all that's needed. Adding your resting heart rate enables the Karvonen method for more precise zones.

Heart Rate Training Zones Explained

Training at different heart rate intensities produces different physiological benefits. Monitoring your heart rate ensures you are working at the right intensity for your goal.

  • Zone 1 (50-60%): Recovery and warm-up. Very light exertion. Promotes blood flow without fatigue.
  • Zone 2 (60-70%): Fat burning. The primary fuel is stored fat. Builds aerobic base over time.
  • Zone 3 (70-80%): Aerobic/cardio. Improves cardiovascular endurance. Comfortable but noticeable effort.
  • Zone 4 (80-90%): Lactate threshold. Challenging. Improves speed and performance capacity.
  • Zone 5 (90-100%): Maximum effort. Short bursts only. Builds peak speed and power.