Assuming you use 1 meter steps to walk 10km at an average rate of 5km/h, it will take 2 hours. 5km/h is a reasonable pace for someone walking to / from work / s

Assuming you use 1 meter steps to walk 10km at an average rate of 5km/h, it will take 2 hours. 5km/h is a reasonable pace for someone walking to / from work / school. Assuming you take one step every second (3600 steps per hour), it will take slightly less than 3 hours. One step per second is very leisurely pace.