Calculate your target heart rate zones based on the Karvonen formula.
Examples
- Age 30, RHR 65 → MHR 190, Aerobic Zone: 140 - 152 BPM
- Age 45, RHR 70 → MHR 175, Fat Burn Zone: 133 - 143 BPM
- Age 25, RHR 60 → MHR 195, Anaerobic Zone: 168 - 181 BPM
Frequently Asked Questions
What is Resting Heart Rate (RHR)?
Your resting heart rate is the number of times your heart beats per minute while at complete rest.
Why use the Karvonen Formula?
It factors in your resting heart rate to calculate a target heart rate tailored to your individual fitness level.
What is the Fat Burn Zone?
At 60-70% of your maximum heart rate, your body derives a higher percentage of calories from fat relative to carbohydrates.
How to measure RHR accurately?
Measure it first thing in the morning before getting out of bed, after a good night's sleep.