HR Zone Calculator

vital_signs Your Metrics

Age (Optional)

Uses formula: 211 - (0.64 x age)

Max Heart Rate (bpm)

Resting Heart Rate (bpm)

looks_3 3-Zone Model

Enter your metrics above to calculate.

looks_5 5-Zone Model (Heart Rate Reserve)

Enter your metrics above to calculate.

directions_run Dr. Will's 7-Zone Model

Note: Percentages over 100% in the original chart are meant for Pace/Power. This calculator adapts them to your estimated Lactate Threshold Heart Rate (LTHR) and caps the top end at your physical Max HR for safety and accuracy.

Enter your metrics above to calculate.