EARLY ACCESS
CARDIO_OPTIMIZATION

HEART RATE
ZONE
CALCULATOR

Calculate your personalized heart rate training zones to optimize cardio workouts for fat burning, endurance building, or peak performance.

// ENTER YOUR DATA

Used to estimate max heart rate if not known

If known from testing, enter here for more accuracy

Measure first thing in the morning for best accuracy

// YOUR TRAINING ZONES

ESTIMATED MAX HEART RATE

190 BPM

ZONE 1 Recovery
50-60%

95 - 114 BPM

Very light effort, warm-up and cool-down

ZONE 2 Aerobic Base RECOMMENDED
60-70%

114 - 133 BPM

Conversational pace, fat burning, mitochondrial development

ZONE 3 Tempo
70-80%

133 - 152 BPM

Moderate effort, improving aerobic capacity

ZONE 4 Threshold
80-90%

152 - 171 BPM

Hard effort, lactate threshold training

ZONE 5 VO2 Max
90-100%

171 - 190 BPM

Maximum effort, short intervals only

// ZONE_TRAINING_GUIDE

UNDERSTANDING HEART RATE ZONES

Heart rate zone training allows you to precisely target different energy systems and physiological adaptations. Each zone serves a specific purpose in your training.

ZONE 2: THE MOST IMPORTANT ZONE

Zone 2 training has gained significant attention for its health and longevity benefits. At this intensity, you're maximizing fat oxidation and building mitochondrial density - the powerhouses of your cells. Most experts recommend spending 80% of training time in Zone 2.

MAX HR ESTIMATION METHODS

FORMULA CALCULATION BEST FOR
Traditional 220 - age General population
Tanaka 208 - (0.7 x age) More accurate for adults
Actual Test Lab or field test Most accurate

KARVONEN FORMULA

The Karvonen method uses your Heart Rate Reserve (HRR) for more personalized zones:

Target HR = ((Max HR - Resting HR) x % intensity) + Resting HR
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Disclaimer: These zones are estimates. For accurate training zones, consider a VO2 max or lactate threshold test. Consult a healthcare provider before starting any new exercise program.