The average time for walking a kilometer can vary from 7 to 12 minutes, depending on your walking speed, according to About.com. The average walking speed of an adult traveling at an easy pace is 5 kilometers per hour, which equals 12 minutes per kilometer.
Many factors, such as walking terrain, weather conditions, elevation and preferred walking speed, influence an individual's walking speed. Individuals typically find exceptionally fast or slow speeds uncomfortable. When walking in a group, the average walking speed of the slowest member should be considered as the primary factor for determining the average speed of the whole group.