Target Heart Rate Calculator
Find your training heart-rate zone.
Find the heart-rate range to train in for your chosen intensity.
The math behind it
max HR = 220 − age; multiply by the lower and upper intensity percentages.
Worked example
Age 30, 60–80% → 114–152 bpm.
FAQ
Fat-burning zone?
Roughly 60–70% of max HR, but total calories burned matter more for weight loss.