Target Heart Rate Zones

Your five training heart-rate zones, from easy recovery to maximum effort.

Awaiting clinical review. Results are based on validated formulas but pending physician verification.

How this is calculated

Estimates maximum heart rate (Tanaka: 208 − 0.7 × age, or 220 − age) and divides it into five zones. Karvonen uses your resting heart rate for a more personal range.

Sources

  1. Tanaka H, et al. Age-predicted maximal heart rate revisited. J Am Coll Cardiol 2001.
This calculator is for educational purposes and is not a substitute for professional medical advice, diagnosis, or treatment. The result is based on standard clinical formulas applied to the values you entered — your individual situation may need adjustments your doctor can make. Never disregard professional medical advice or delay seeking it because of something you read or calculated on healthcalculus.