Target Heart Rate Calculator

Target Heart Rate Calculator

Calculate your target heart rate zones for exercise

Personal Information
years
bpm
Calculation Method
Custom Intensity Range
%
%
Your Target Heart Rate Results
Based on your age and fitness level
122 - 146 bpm
Moderate Intensity (50-70%)
Target Heart Rate Zone
Heart Rate Zones
Heart Rate Zone Chart
Zone Intensity % of Max HR Heart Rate Range Purpose
Zone 1 Very Light 50-60% 95 - 114 bpm Warm-up, Recovery
Zone 2 Light 60-70% 114 - 133 bpm Fat Burning, Endurance
Zone 3 Moderate 70-80% 133 - 152 bpm Aerobic Fitness
Zone 4 Hard 80-90% 152 - 171 bpm Anaerobic Capacity
Zone 5 Maximum 90-100% 171 - 190 bpm Peak Performance

About Target Heart Rate

Target heart rate is the desired range of heart rate reached during aerobic exercise which enables one's heart and lungs to receive the most benefit from a workout.

Calculation Methods

Method Formula Description
Karvonen Formula ((Max HR - Resting HR) × Intensity) + Resting HR Most accurate, accounts for fitness level
Max Heart Rate Max HR × Intensity Simple calculation using 220 - Age
Zoladz Method Max HR - Zone Adjustment Uses fixed adjustments for different zones

Heart Rate Zones

  • Zone 1 (50-60%): Very light activity, perfect for warm-up and recovery
  • Zone 2 (60-70%): Light activity, improves basic endurance and fat burning
  • Zone 3 (70-80%): Moderate activity, improves aerobic capacity
  • Zone 4 (80-90%): Hard activity, improves anaerobic capacity and speed
  • Zone 5 (90-100%): Maximum effort, improves peak performance

How to Measure Your Heart Rate

  • Use a heart rate monitor for most accurate results
  • Manually: Count pulse for 15 seconds and multiply by 4
  • Resting heart rate should be measured in the morning before getting out of bed
  • Maximum heart rate can be estimated as 220 - Age

Safety Considerations

  • Consult with a doctor before starting any new exercise program
  • Stop exercising if you feel dizzy, nauseous, or experience chest pain
  • Build up intensity gradually
  • Stay hydrated during exercise
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