❤️
HR Zones
Karvonen training zones
🔒100% Privacy⚡Instant🆓Free Forever📱Mobile Friendly
Max HR
190 bpm
Z1 Recovery125-138
Z2 Aerobic138-151
Z3 Tempo151-164
Z4 Threshold164-177
Z5 VO2 Max177-190
◆ How it works
HR Zones — 3 simple steps
01
Age
Years
02
Resting HR
On waking
◆ FAQ
Common questions.
Best zone?
+
◆ Related tools