Heart Rate Calculator
Get your max heart rate and personalized training zones.
Heart Rate Zones
About Heart Rate Zones
Heart rate zones are specific ranges of beats per minute (BPM) that represent exercise intensity levels. They are calculated using the Karvonen Formula, which takes into account both your maximum and resting heart rates to determine personalized training targets. Understanding and training within these zones helps improve cardiovascular health, endurance, and fat metabolism.
How It Works
- Max Heart Rate (MHR): 220 − age (approximation).
- Heart Rate Reserve (HRR): MHR − Resting Heart Rate (RHR).
- Target Zone: (HRR × %Intensity) + RHR.
- Each zone reflects a specific physiological training benefit.
- Tracking helps balance fat burning, endurance, and recovery sessions.
Common Heart Rate Zones
- Zone 1 (50–60% HRR): Warm-up & recovery – promotes blood flow and active recovery.
- Zone 2 (60–70% HRR): Fat-burning zone – builds aerobic endurance and burns stored fat.
- Zone 3 (70–80% HRR): Aerobic zone – improves cardiovascular fitness and stamina.
- Zone 4 (80–90% HRR): Anaerobic zone – increases speed and power capacity.
- Zone 5 (90–100% HRR): Maximum effort – boosts performance and VO₂ max levels.
Why It Matters
- Helps structure workouts for targeted fitness goals and safety.
- Improves fat utilization and cardiovascular efficiency over time.
- Prevents overtraining by balancing intensity and recovery.
- Enables personalized training for athletes and fitness enthusiasts.
- Supports long-term heart health and endurance optimization.
Formula Used (Karvonen Method)
- Target Heart Rate = ((MHR − RHR) × %Intensity) + RHR
- Example: For a 30-year-old (MHR = 190) with RHR = 60, at 70% intensity: ((190 − 60) × 0.7) + 60 = 151 BPM.
Training with heart rate zones helps you maximize efficiency by aligning exercise intensity with your fitness goals. Regular monitoring can enhance performance, improve recovery, and ensure safe progression toward optimal cardiovascular health.