The distance of the straight line from Hanoi to Ho Chi Minh City is approximately 1,100 kilometers. This distance is basically computed in terms of land transit, coming to about 1,500 kilometers. This distinction in distance presumably is attributed to the difference in projection which has been chosen.Everyone knows that the straight line distance is from one point on the map to another, while for land the distance measured takes into account some figures such as mountains and urban area planning and transportation route.