Notes
Males: 210 minus 1/2 your age minus 5% of your body weight + 4
Predicted Max = 185
Zone Number % of Heart Range Enter Your heart Rate Range for Each Zone
1 50%-60% - bpm 93 to 111 BPM
2 60%-70% - bpm 111 to 130 BPM
3 70%-80% - bpm 130 to 148 BPM (Target > 1 Hour)
4 80%-90% - bpm 148 to 167 BPM (Target < 1 Hour)
5 90%-100% - bpm 167 to 185 BPM (Target for Intervals)