How do I use the Heart Rate Zones Calculator?
Enter your values in the fields and the result updates instantly as you type.
Heart Rate Zones Calculator
Calculate training heart rate zones based on age and resting heart rate.
Your age in years
Heart rate at rest (morning)
Results
Maximum Heart Rate
190 bpm
Heart Rate Reserve
130 bpm
Recovery (50-60%)
125-138 bpm
Aerobic (60-70%)
138-151 bpm
Threshold (70-80%)
151-164 bpm
Anaerobic (80-90%)
164-177 bpm
VO2 Max (90-100%)
177-190 bpm
Formula: Karvonen formula: Target HR = ((MHR - RHR) × Intensity%) + RHR
Frequently asked questions
What formula does this calculator use?
Karvonen formula: Target HR = ((MHR - RHR) × Intensity%) + RHR
Can I use decimal values?
Yes. Decimal inputs are supported for most calculators. Integer-based tools use rounded integer values where appropriate.
Is this calculator free?
Yes. CalcuNimble calculators are free and optimized for fast everyday use.