How long is the Las Vegas Strip?

Some online sources claim the length of the Las Vegas Strip is 2.5 miles or 4 kilometers. But the distance on Las Vegas Boulevard between the Four Seasons Hotel at 3960 Las Vegas Boulevard South and the Stratosphere Hotel at 2000 Las Vegas Boulevard South is about 4 miles. So chalk the difference up to the Strip’s unmatched ability to reinvent itself, including its length.