Cardio zone
Sample
Age 35, resting HR optional
What you get
Max HR and target zone bounds.
Target Heart Rate Calculator
Heart rate is convenient for intensity; perceived exertion and talk tests also help. Medications can alter HR response.
Target Heart Rate Calculator
Max HR (Tanaka)
187 bpm
Light (50–60%)124–136 bpm
Fat burn (60–70%)136–149 bpm
Aerobic (70–80%)149–162 bpm
Anaerobic (80–90%)162–174 bpm
These tools provide general fitness estimates only and are not a substitute for professional medical advice.
How to Use This Tool
- Enter age (and resting HR for Karvonen).
- Toggle Karvonen if you know resting HR.
- Use zones as loose guides.
Features
- Tanaka max HR estimate
- Karvonen optional
- Four training bands
Example
Frequently Asked Questions
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