Toronto is 2.5 times larger than Arlington, Texas.
Area: 265 km2 calculated
Arlington is a city in the U.S. state of Texas, within the Dallas–Fort Worth–Arlington metropolitan area and Tarrant County. According to the U.S. Wikipedia
Area: 665 km2 calculated
Toronto is the most populous city in Canada and the provincial capital of Ontario. It is located in Southern Ontario on the northwestern shore of Lake Ontario. The history of Toronto began in the late 18th century when the British Crown purchased its land from the Mississaugas of the New Credit. Wikipedia