Some ways to measure walking distance include using GPS with a mobile phone or watch and tracking steps with a pedometer. Another method involves driving a car along the walking route and paying attention to the odometer to see the total distance.
GPS provides accurate measurement of distance while walking and is easy to use. Many smartphones and other mobile devices feature GPS trackers that can automatically track distance, and some sports watches offer the same tracking technology. There are also apps on smartphones, such as MapMyWalk, that work with the device’s GPS to measure the distance.
Pedometers are good for someone that knows their stride length. The number of steps tracked on the pedometer can be used to calculate the approximate distance.