Free Exercise Intensity Calculator
Evaluate your workout intensity as a percentage of maximum heart rate and heart rate reserve.
years
bpm
bpm
Percentage of Max HR
78.9 %
Percentage of HR Reserve69.2 %
Max HR Value190 bpm
Percentage of Max HR vs Age
Exercise Intensity Metrics
Percentage of Max HR
%MaxHR = Exercise HR / (220 - Age) x 100
Percentage of HR Reserve (Karvonen)
%HRR = (Exercise HR - Resting HR) / (Max HR - Resting HR) x 100
Intensity Levels
Example Calculation
A 30-year-old with resting HR 60, exercising at 150 bpm.
- 01Max HR = 220 - 30 = 190
- 02%MaxHR = 150 / 190 x 100 = 78.9% (Vigorous)
- 03%HRR = (150 - 60) / (190 - 60) x 100 = 69.2% (Vigorous)
Frequently Asked Questions
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