Heart Rate Zones

6 calculators

Heart Rate Zones (% of Max)

Calculate five heart-rate training zones from age-based maximum heart rate using the Fox formula.
Heart Rate Zones (Karvonen Method)

Calculate target heart rate zones using the Karvonen heart rate reserve method.
Max Heart Rate Calculator (220 Minus Age)

Estimate maximum heart rate using the classic 220-minus-age formula.
Max Heart Rate Calculator (Tanaka Formula)

Estimate maximum heart rate using the Tanaka age-prediction equation (208 - 0.7 × age).
Target Heart Rate Calculator

Calculate target heart rate zones from maximum heart rate and exercise intensity.
Heart Rate Recovery Calculator

Calculate the drop in heart rate during the first minute after exercise stops.