Heart Rate Training Guides
Evidence-based articles on heart rate zone training. From complete beginners to experienced athletes — find the guide that matches where you are in your training journey.
Heart Rate Training Zones Explained: The Complete Guide
The definitive guide to all five heart rate zones — what they are, how to calculate them, when to train in each zone, and practical examples for runners, cyclists, and general fitness.
How to Calculate Your Heart Rate Zones Correctly
Step-by-step guide to calculating zones using the %MHR and Karvonen methods. Includes common mistakes, when to recalculate, and formula comparison.
10 min read
Heart Rate Training for Beginners
New to heart rate training? Start here. The only two zones you need, a simple weekly plan, wearable basics, and how to avoid overwhelm.
9 min read
Resting Heart Rate vs Max Heart Rate
What each metric means, how they differ, why heart rate reserve matters, and how both numbers combine for more accurate training zones.
8 min read
Is Zone 2 Training Best for Fat Loss?
What science actually says about the fat-burning zone. Fuel source vs total calorie burn, HIIT comparison, and a practical fat loss training structure.
8 min read
What Is My Heart Rate Zone 2? Calculate Yours Now
Zone 2 is 60–70% of your max HR. Learn to calculate yours with the Fox, Tanaka, and Karvonen formulas, with worked examples by age.
9 min readTop 3 Best Fat Burning Workouts for Belly (2026 Comparison)
Honest comparison of SnapHRZones, FITIV Pulse, and HeartHero for belly-fat workouts — plus a ready-to-use 4-week Zone 2 protocol.
12 min readZone 2 Heart Rate Training Guide
Deep dive into Zone 2 — mitochondrial biogenesis, fat oxidation, age-specific tables, and how to structure Zone 2 sessions for running and cycling.
18 min read
Cycling Heart Rate Zones Guide
Why cycling HR runs lower than running, sweet spot training, power vs heart rate, indoor trainer considerations, and sport-specific zone adjustments.
14 min read
80/20 Polarized Training Method
Dr. Stephen Seiler's research explained. Why 80% easy and 20% hard outperforms moderate training — with weekly plan examples and zone distribution.
12 min read
Karvonen Method Explained
Full breakdown of the Heart Rate Reserve formula — why resting heart rate matters, worked examples, and who benefits most from this personalized approach.
15 min readCalculators
Free tools to calculate your personalized heart rate training zones.
Heart Rate Zone Calculator
Calculate all 5 training zones using Tanaka, Gulati & Karvonen formulas.
Max Heart Rate Calculator
Tanaka for men, Gulati for women, with Fox shown as a reference.
Max HR Formulas Compared
Fox vs Tanaka vs Gellish vs Nes vs Gulati across ages 20–70 — which fits you.
Fat Burning Zone Calculator
Find your Zone 2 range for fat oxidation and metabolic health.
Cardio & Peak Zones Calculator
High-intensity Zone 4–5 ranges for speed and VO2 max development.
By Age & Sport
Pre-computed zone tables for common age groups, sex-specific max HR pages, and sport-adjusted zones.
Have Questions About Heart Rate Training?
Our FAQ covers 36 common questions about zones, formulas, wearables, and training by heart rate.
Browse FAQDisclaimer: This calculator is for informational purposes only and does not provide medical advice. Always consult with a healthcare professional before starting any new exercise program.