Deut 1:2

1:2 eleven days’ journey. The distance between Horeb and Kadesh-barnea is about 150 miles. The Israelites went by way of the Mount Seir road, which probably means they traveled part of the time along the valley north of Ezion-geber, a journey of 175 miles or more. They made good time if the whole nation arrived in eleven days. But the “eleven days’ journey” could be a conventional expression for the distance involved, rather than the time taken on this particular journey.