Target Heart Rate Calculator

This will work out your recovery zone at 70% (the lower value). This roughly represents around, or just below, your lactate threshold and the point at which you are still working with oxygen.

The higher value is what we call your ‘Red’ zone for higher intensity work. Here you are building up lactate and working without oxygen.

*Formula is based on 220 – age for theoretical heart rate values only. Contact us to find out how to make these zones more specific to your ability.