Oklahoma City is 5.7 times larger than Orlando, Florida.
Area: 1,682 km2 calculated
Oklahoma City is the capital and largest city of the U.S. state of Oklahoma. The county seat of Oklahoma County, the city ranks 27th among United States cities in population. The population grew following the 2010 Census, with the population estimated to have increased to 610,613 as of July 2013. Wikipedia
Area: 295 km2 calculated
Orlando is a major city in the U.S. state of Florida. Located in Central Florida, it is the county seat of Orange County and the center of the Greater Orlando metropolitan area. Wikipedia