NBNumbarn

Target Heart Rate Calculator

Adjust the inputs below. Results update as you type.

Uses the common “220 − age” max HR estimate, then % bands. Many people differ—consider a field test or lab measurement for training.

Estimated max heart rate

185 bpm

  • Zone 1 (very light): 93111 bpm
  • Zone 2 (light): 111130 bpm
  • Zone 3 (moderate): 130148 bpm
  • Zone 4 (hard): 148167 bpm
  • Zone 5 (max): 167185 bpm

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