Broken Arrow, Oklahoma is 5.4 times larger than Lowell, Massachusetts.
Area: 205 km2 calculated
Broken Arrow is a city located in the northeastern part of the State of Oklahoma, primarily in Tulsa County but also with a section of the city in western Wagoner County. It is the largest suburb of Tulsa. Wikipedia
Area: 38 km2 calculated
Lowell is a city in Middlesex County, Massachusetts, in the United States. With an estimated population of 108,522, it is the fourth-largest city in Massachuetts, after Boston, Worcester, and Springfield, and the second-largest in what the U.S. Census Bureau defines as Boston's metropolitan area. Wikipedia