Training Zone Calculator
Calculate heart rate training zones and pace zones for optimal running performance
About this calculator
The Training Zone Calculator helps runners and athletes determine their optimal heart rate and pace zones for different training intensities. By calculating personalized zones based on your fitness level and goals, this tool ensures you train at the right intensity to maximize performance gains while avoiding overtraining. Whether you're preparing for a marathon, improving endurance, or building speed, knowing your training zones is essential for structured, effective workouts that deliver results.
How to use
Enter your age, resting heart rate, and recent race times or fitness test results. The calculator will generate your personalized heart rate zones (typically 5 zones from recovery to maximum effort) and corresponding pace zones. Use these zones to structure your training sessions and monitor intensity during workouts.
Frequently asked questions
What are the different heart rate training zones?
Zone 1 is recovery/easy pace, Zone 2 is aerobic base building, Zone 3 is tempo/threshold, Zone 4 is lactate threshold, and Zone 5 is maximum effort/VO2 max training.
How accurate is my resting heart rate measurement?
Measure your resting heart rate first thing in the morning before getting out of bed for 3-5 consecutive days, then use the average for most accurate results.
How often should I recalculate my training zones?
Recalculate your zones every 6-8 weeks or after significant fitness improvements, weight changes, or when you notice your perceived effort doesn't match the prescribed zones.