The average person walks the equivalent of five times around the world in a lifetime

The average moderately active person take aound 7,500 step/day. If you maintain that daily average and live until 80 years of age, you’ll have walked about 216,262,500 steps in your lifetime. Doing the math; the average person with the average stride living until 80 will walk a distance of around 110,000 miles. Which is the equivalent of walking about 5 times around the Earth, right on the equator.
source:
http://www.zmescience.com/other/feature-post/10-quick-scientific-facts-will-blow-mind/