Calibrating Nike + iPod
To ensure accurate workout data, you can calibrate Nike + iPod to the length of your walking or
Calibrate Nike + iPod: Record a running or walking workout over a known distance of at least
a quarter mile (400 meters). Then, after you tap End Workout, tap Calibrate on the workout
summary screen and enter the actual distance you covered.
Reset to the default calibration
Go to Settings > Nike + iPod.