What does this tool do?
Resting heart rate is the number of beats per minute when you are calm and have not recently exercised. This calculator relates your reading to an estimated maximum heart rate and gives a broad fitness band for context.
The Formula
Max HR ≈ 220 − Age; HR reserve = Max HR − Resting HR; % of max = Resting HR ÷ Max HRFrequently Asked Questions
When should I measure resting heart rate?
Measure after waking and before coffee, food or exercise. A single reading is noisy, so use the average of several mornings.
Is a lower resting heart rate always better?
Fitter people often have lower resting rates, but medication, stress, illness and genetics all affect it. A sudden change from your normal is worth discussing with a clinician.