For most healthy adults, the average walking speed is about 3 miles per hour (mph). However, a person’s walking speed can vary, based on factors such as age, overall fitness level, and more. The above ...

The fastest Olympic sprint was Usain Bolt’s 100 meters at the London Games, averaging more than 23 miles per hour for 9.63 seconds. Marathoners, who run for two hours, top out around half of Bolt’s ...