However, a good estimate for walking across the Magic Kingdom from one end to the other, roughly from Cinderella's Castle to the entrance of the park, would be about 1.5 miles.
Keep in mind that:
* This is just an approximate distance.
* You'll likely walk further than this if you visit attractions and stores along the way.
* The park is designed to encourage walking, but there are also monorail and bus transportation options.
Enjoy your visit to the Magic Kingdom!