Heart Rate Calculator

About and methods

Every calculator on this site uses published formulas and guideline cut-offs. Nothing is adjusted by us.

  • Maximum heart rate: Fox (220 − age), Tanaka, Gellish and Gulati formulas.
  • Intensity ranges: American Heart Association.
  • Karvonen heart rate reserve method.
  • Heart rate recovery cut-offs: Cole 1999 and Shetler 2001.
  • VO2max: Uth 2004.

Privacy

All calculations run in your browser. Nothing you enter is sent or stored.

Sources

  • American Heart Association. Target heart rates chart; All about heart rate.
  • Tanaka H, Monahan KD, Seals DR. Age-predicted maximal heart rate revisited. J Am Coll Cardiol 2001;37:153–156.
  • Gulati M et al. Heart rate response to exercise stress testing in asymptomatic women. Circulation 2010;122:130–137.
  • Karvonen MJ et al. The effects of training on heart rate. Ann Med Exp Biol Fenn 1957;35:307–315.
  • Cole CR et al. Heart-rate recovery immediately after exercise as a predictor of mortality. N Engl J Med 1999;341:1351–1357.
  • Uth N et al. Estimation of VO2max from the ratio between HRmax and HRrest. Eur J Appl Physiol 2004;91:111–115.