Heart Rate Calculator

This is an online heart rate calculator that calculates your target heart rate when performing an exercise of a certain intensity.

how to calculate heart rate?

You can apply the formula below to find heart rate:

TargetHR = Resting heart rate + Intensity [%] * Reserve

where:

  • Intensity is the percentage of heart rate reserve you use up. Keep reading to see the percentage range for various types of training.
  • Reserve is the heart rate reserve, calculated as max heart rate - resting heart rate.

The max heart rate formula is as below:

MaxHR = 220 - Age

What are the heart rate zones?

What’s the percentage of heart rate reserve you should use? It depends on the type of training:

  • Fat-burning range: 60% to 70%. This kind of training builds a basic foundation of endurance.
  • Aerobic range: 70% to 80%. This kind of training helps to improve your cardiovascular system. You will still feel comfortable and break a sweat, but no anaerobic burn sensation.
  • Anaerobic range: 80% to 90%. Max fat burn, but you must be fit enough to train with some oxygen present for additional fat burn.
  • Red line range: 90% to 100%. The highest total calories burned, but the lowest percentage of fat calories.

This calculator is created with
Visual Paradigm Tabular

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