Target Heart Rate Calculator

Calculate your target heart rate zones for optimal training using various formulas and intensity scales. Choose from multiple max heart rate estimation methods and activity intensity scales.

Max Heart Rate

Estimate from age

Test result

Age

Resting Heart Rate

bpm (optional)

Settings

Max heart rate estimation formula:

Haskell & Fox (1971)

Tanaka, Monahan, & Seals (2001)

Nes, Janszky, Wisloff, Stoylen, Karlsen (2013)

Activity intensity scale:

The Karvonen Formula

Rating of perceived exertion with Borg scale

Rating of perceived exertion with modified Borg CR10 scale