Running
Heart Rate Zones Calculator
Estimate five training heart-rate zones using age and resting heart rate.
Frequently asked questions
What is heart-rate reserve?
It is maximum HR minus resting HR.
Are zones exact?
No. They are starting points that should be refined with training response.
How should I measure resting HR?
Measure consistently when rested, ideally on several mornings.
What are the five zones?
They progress from easy recovery through maximal-intensity work.