Is 306 square millimeters as big as Lake Ontario?
It's about 0.00000000000002 times as big as Lake Ontario
The size of Lake Ontario is about 18,960,000,000,000,000.000000000000000000000 square millimeters.
(a.k.a. Lac Ontario) (surface area)
The smallest of North America's Great Lakes (by surface area), Lake Ontario has a total area of 18,960,000,000,000,000.000000000000000000000 square millimeters. It borders the cities of Toronto, Ontario, Canada and Rochester, New York.
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