Charlotte, North Carolina is 88% larger than Chattanooga, Tennessee.
Area: 733 km2 calculated
Charlotte is the largest city in the U.S. state of North Carolina and the seat of Mecklenburg County. In 2013, the estimated population of Charlotte according to the U.S. Census Bureau was 792,862, making it the 16th largest city in the United States based on population. Wikipedia
Area: 390 km2 calculated
Chattanooga is the fourth-largest city in the U.S. state of Tennessee, with a population of 167,674 as of the 2010 census, and an estimated population of 171,279 in 2012. It is the seat of Hamilton County. Wikipedia