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Heart Rate Calculator: Training Zones & Max HR

Use this heart rate calculator to calculate your heart rate zones based on your maximum heart rate or the Karvonen method. This tool helps you manage training intensity, improve endurance and structure your workouts more effectively.

Tool developed by EliteSport – Running

Heart Rate Training Zone Calculator

Classic formula, Karvonen method, and personalised training heart rate zones

If you know your actual max heart rate, enter it here and the calculator will use it first. If not, it will estimate your max heart rate using the formula 220 - age.
Optional in classic mode. You can enter it for reference, but it is not required for the calculation.
The Karvonen method uses your resting heart rate and heart rate reserve to generate more personalised training zones.
Max HR used
—
Resting HR
—
Heart rate reserve
—
Training zones
50–60%
60–70%
70–80%
80–90%
90–100%
Recovery: —
Easy aerobic: —
Steady aerobic: —
Threshold: —
Maximum effort: —
These zones are general training guidelines and should always be adjusted based on your fitness level, sport, and perceived effort.
Heart rate zone table
Zone% intensityHeart rateMain use
Run a calculation to display your training zones.
Quick reference points
Reference pointValue
Run a calculation to display your reference points.
Enter your age to calculate your training heart rate zones.
How should you use your heart rate zones?
• Classic method: based on your theoretical max heart rate, or your known max heart rate if you enter it.
• Karvonen method: more personalised because it factors in your resting heart rate and heart rate reserve.
• Training zones: useful for planning recovery runs, aerobic work, threshold sessions, and high-intensity efforts.
→ Explore our other running calculators
How to interpret your training heart rate
Training heart rate is one of the most useful tools for managing workout intensity. It helps you stay controlled during easy sessions, avoid pushing too hard on recovery days, and better target threshold or higher-intensity workouts.
The classic method gives you a quick estimate based on maximum heart rate. It is simple and practical for broad training guidance. The Karvonen method goes a step further by using your resting heart rate to calculate heart rate reserve, which often produces more individual and more relevant training zones.
At EliteSport, we recommend using heart rate zones as a supporting tool alongside pace, perceived effort, and how you actually feel during a session. Heart rate can vary depending on fatigue, stress, hydration, temperature, and terrain. The goal is not to follow a number blindly, but to use heart rate as a smarter way to understand and guide your training.

Define your heart rate training zones

  • The heart rate calculator helps you estimate your training zones based on your maximum heart rate (HR max) and, if you choose, your resting heart rate. These benchmarks are essential for structuring your workouts, better managing intensity, and making effective progress in running or any endurance sport.
  • In just a few seconds, you’ll get your different heart rate zones: basic endurance, active endurance, threshold, and maximum intensity. These zones help you tailor your workouts to your goals, whether you’re looking to improve your endurance, prepare for a race, or avoid overtraining.
  • The calculation can be performed using the classic method (based on maximum heart rate) or the Karvonen method, which takes your resting heart rate into account to suggest more personalized zones.

How are heart rate zones calculated?

  • The traditional method is based on an estimate of your maximum heart rate, typically calculated using the formula: 220 minus your age. Training zones are then defined as a percentage of this value.
  • The Karvonen method goes a step further by using your resting heart rate to calculate your cardiac reserve. This approach yields more precise zones, tailored to your fitness level and physiological profile.
  • These zones are widely used in training to structure workouts: recovery, endurance, threshold training, or high-intensity efforts.

Heart Rate Training: FAQ

What is my maximum heart rate?

It can be estimated using the formula 220 minus age, but this value is purely theoretical. For greater accuracy, a field test or laboratory test is recommended.

What is the best zone for improving endurance?

Basic endurance (around 60–70% of your maximum heart rate) is the key zone for building your aerobic base and improving your ability to run for long periods.

Should we use the traditional method or the Karvonen method?

The Karvonen method is generally more accurate because it takes your resting heart rate into account. However, the standard method is still sufficient for basic use.

Is heart rate 100% reliable?

No, it can vary depending on fatigue, stress, heat, or hydration. It’s important to take your own feelings and perception of exertion into account as well.

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