Cardio & Pulmonary
Maximum Heart Rate Calculator
Maximum Heart Rate is the foundation of exercise prescription in physiotherapy. It is used to calculate training zones, prescribe safe exercise intensities, and monitor cardiac patients during rehabilitation.
Formula
Fox: HRmax = 220 - Age | Tanaka: HRmax = 208 - (0.7 × Age)
Normal Range
HRmax decreases with age. Example: 40yr = 180 bpm (Fox) or 180 bpm (Tanaka)
Clinical Use
Exercise prescription, cardiac rehabilitation, sports physiotherapy, fitness testing.
Use the Calculator
Enter patient values and get instant AI-powered clinical interpretation.