What are heart rate zones?

Divisions of heart rates that correspond to different levels of exercise intensity and physiological responses.

How do I find my resting heart rate?

Measure your pulse first thing in the morning before getting out of bed for an accurate reading.

Why is it important to know these zones?

Knowing your heart rate zones helps you train more effectively, ensuring workouts are neither too easy nor too hard.

Are there other methods to determine training zones?

Some use lactate threshold testing or perceived exertion scales for determining individualized heart rate zones.

Does the tool save my personal data?

No, all calculations occur in your browser. Your information remains private and secure.

Heart Rate Zone Calculator

Calculate your heart rate training zones using the Karvonen method for optimal workouts.

Ageyears

Resting Heart Ratebpm

Karvonen Heart Rate Zones

The Karvonen method uses your heart rate reserve (Max HR - Resting HR) to calculate personalized training zones. Zone 2 is ideal for fat burning and endurance. Zone 4-5 improves speed and anaerobic capacity. Max HR is estimated as 220 minus age.

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About This Tool

The Heart Rate Zone Calculator helps athletes and fitness enthusiasts determine their optimal heart rate zones for various workout intensities.

Input your age and resting heart rate to calculate your target heart rate zones. The tool outputs five different training zones based on percentages of maximum heart rate.

Use this calculator to plan effective cardiovascular workouts tailored to your fitness level, all without the need for a login or personal data storage.