Ontario (Canada) is 7,171 times larger than Cary, North Carolina.
Ontario is one of the ten provinces of Canada, located in east-central Canada. It is Canada's most populous province by a large margin, accounting for nearly 40% of all Canadians, and is the second largest province in total area. Wikipedia
Area: 150 km2 calculated
Cary is the seventh largest municipality in North Carolina. Cary is in Wake and Chatham counties in the U.S. state of North Carolina. Wikipedia