Great Britain would fit in the whole of France, including overseas territory, more than three times, but not quite in Metropolitan France. The area of Great Britain is 80,823 square miles and the total area of France is 260,558 square miles, whilst the area of Metropolitan France (the mainland and Corsica) is less than three times the size of Great Britain, at 213,010 square miles.
The country we know as France (just the mainland, without overseas dependencies or Corsica) is not three times as big as Great Britain.
The country we know as France (just the mainland, without overseas dependencies or Corsica) is not three times as big as Great Britain.