Track your cardio fitness age, relative age and percentile with this simple fitness companion app. Fitness Age is built to work with the Apple Health app on your iPhone and Apple Watch.
Your cardio fitness level is an excellent measure of your overall fitness, but the measurement is a weird, abstract number called VO₂ max. This app takes that cardio fitness number and converts it to an easy-to-understand fitness age. If you prefer, you can switch to relative age which shows you how much younger or older you are, or to percentile to see how you stack up against the spread of people your age.
All calculations are estimates only.
