Heart Rate Training Zones Calculator
Calculate your heart rate training zones for optimal marathon and distance training
About this calculator
The Heart Rate Training Zones Calculator determines your personalized heart rate zones based on your maximum heart rate, helping you train more effectively for marathons and distance running. By training in specific heart rate zones, you can optimize your aerobic base, improve lactate threshold, and enhance overall endurance performance. This tool takes the guesswork out of training intensity, ensuring you're working at the right effort level for each workout to maximize your marathon preparation and avoid overtraining.
How to use
Enter your age to calculate your estimated maximum heart rate, or input your known maximum heart rate if available. The calculator will automatically generate your five training zones with corresponding heart rate ranges. Use these zones to guide your training intensity during different workouts, from easy recovery runs to tempo sessions.
Frequently asked questions
What are the different heart rate training zones?
The five zones range from Zone 1 (active recovery, 50-60% max HR) to Zone 5 (neuromuscular power, 90-100% max HR), each targeting different energy systems.
How accurate is age-based maximum heart rate calculation?
The 220-minus-age formula provides a general estimate but can vary by ±10-15 beats. Laboratory testing or field tests give more accurate results.
Which zones should I focus on for marathon training?
Marathon training emphasizes Zone 2 (aerobic base building) for 80% of training, with Zone 3-4 work for lactate threshold and race pace efforts.