Heart Rate Zone Calculator
Calculate your personalized heart rate zones for fat burning, cardio, and peak performance training. Based on age-based max heart rate and Karvonen method.
Frequently Asked Questions
What is the fat-burning zone?
60-70% of max HR. Your body uses a higher percentage of fat for fuel. Good for endurance and recovery workouts.
What is the cardio zone?
70-85% of max HR. Improves cardiovascular fitness and calorie burn. Best for sustained aerobic exercise.