Cardiorespiratory Fitness Calculator

Find your training zones and estimate your cardiorespiratory fitness

Your Information

Age *

years

Sex (optional)

Fitness Test (optional)

12-Minute Cooper Test Distance (optional)

miles

Enter your distance to also estimate your VO₂ max. Add your sex for a cardiorespiratory fitness reference table.

Fill in your age and details, then tap Calculate to see your heart rate zones and cardiorespiratory fitness estimate.