Master Heart Rate Training
Your complete resource for training with heart rate zones. Free calculators, expert guides, and proven training methods for runners, cyclists, and triathletes.
🚀 Quick Start Learning Path
Calculate Your Zones
Start by determining your personalized heart rate training zones
Calculate Zones →
Find your heart rate zones, build an aerobic base with 8- and 12-week plans, and use pace and power tables to train easy and race faster. Inside: zone tables by age, max HR, heart rate reserve (Karvonen) and LTHR, field tests for max HR, LTHR and FTP, four ways to verify Zone 2 without trusting your watch, and complete base plans for running and for cycling.
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💓 Heart Rate Calculators
Free tools to calculate your personalized training zones
Zone 2 Calculator
Calculate your aerobic base training zone for optimal endurance development and fat burning.
All 5 HR Zones
Calculate all 5 training zones for complete training intensity guidance.
Max Heart Rate
Determine your maximum heart rate using multiple proven formulas.
Target Heart Rate
Find your target heart rate for specific workout intensities.
Karvonen Formula
More accurate zones using your resting heart rate and heart rate reserve.
Lactate Threshold
Determine your lactate threshold pace and heart rate for race performance.
📚 Expert Training Guides
In-depth articles to master heart rate training
The Complete Guide to Zone 2 Training
Master the foundation of endurance training with Zone 2. Learn the science, methods, and mistakes to avoid.
Heart Rate Zones for Running
Learn how to use all 5 heart rate zones to optimize your running training and performance.
Lactate Threshold Training Guide
Improve your sustainable race pace with lactate threshold training methods and protocols.
VO2 Max Training Guide
Build top-end aerobic power with structured VO2 max training protocols and intervals.
Heart Rate Zone Chart by Age
Exact BPM ranges for Zones 1-5 at every age from 20 to 75, plus max HR formulas compared.
Aerobic vs Anaerobic Training
Understand the differences and how to balance both systems for optimal endurance performance.
Running Pace Training Guide
Learn how to use pace and heart rate together for optimal running performance.
🗺️ Explore Other Training Hubs
Frequently Asked Questions
What is heart rate training?
Heart rate training uses your heart rate to guide training intensity. By training in specific HR zones, you can optimize different physiological adaptations like fat burning (Zone 2), lactate threshold (Zone 4), and VO2 max (Zone 5).
Which heart rate zone should I train in?
Most endurance athletes should spend 70-80% of training time in Zones 1-2 (easy aerobic base), 10-15% in Zone 3 (tempo), and 10-15% in Zones 4-5 (high intensity). This 80/20 approach builds a strong aerobic foundation while developing speed.
How accurate are heart rate zone calculators?
Age-based formulas are accurate within ±10-15 bpm for most people. For best results, use the Karvonen method with your resting heart rate, or better yet, perform a field test to determine your actual lactate threshold heart rate.
Do I need a heart rate monitor?
While helpful, it's not strictly necessary. You can use perceived exertion and the talk test. For Zone 2, you should be able to hold a full conversation. However, a heart rate monitor provides more precise data and helps prevent training too hard.
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Wahoo ELEMNT BOLT 3
Pair with any ANT+ or Bluetooth HR monitor. Displays training zones in real time.