Columbus, Ohio is 4.7 times larger than Garland, Texas.
Area: 694 km2 calculated
Columbus is the capital of and the largest city in the U.S. state of Ohio. It is the 15th largest city in the United States with a population of 822,553. It is the core city of the Columbus, OH Metropolitan Statistical Area, which encompasses a ten county area. Wikipedia
Area: 148 km2 calculated
Garland is a city in the U.S. state of Texas. It is a large city northeast of Dallas and is a part of the Dallas–Fort Worth metroplex. It is located almost entirely within Dallas County, except a small portion located in Collin County. Wikipedia