Heart Rate Training Zone Calculator
Enter your age and (optionally) your measured maximum heart rate to calculate recommended BPM ranges for five training zones. A more accurate method to find your true maximum is a supervised exercise tolerance or stress test performed in a clinical setting.
Import your heart-rate data from your watch after a workout and log every session in KETTLEBELL MONSTER™. Create a free account →
References:
- Maximum heart rate is estimated using the Tanaka equation (Tanaka, Monahan & Seals, 2001): MHR = 208 − 0.7 × age. This formula is widely cited by ACSM and has been shown to be more accurate across adult age groups than the older 220 − age rule.
- Training-zone ranges are percentage bands of MHR, aligned with the Karvonen method for target heart-rate prescription.
- CDC — Target Heart Rate and Estimated Maximum Heart Rate.