Commonwealth of Nations
The land area of the Commonwealth nations is about , or about 21% of the total world land area. The three largest Commonwealth nations by area are Canada at , Australia at , and India at . In 2016, the Commonwealth members had a combined gross domestic product of over $9 trillion, 78% of which is accounted for by the four largest economies: United Kingdom ($2.629 trillion), India ($2.256 trillion), Canada ($1.529 trillion), and Australia ($1.258 trillion).
Crown dependencies
While their constitutional status bears some resemblance to that of the Commonwealth realms, the Crown dependencies are not members of the Commonwealth of Nations. They participate in the Commonwealth of Nations by virtue of their relationship with the United Kingdom, and participate in various Commonwealth institutions in their own right. For example, all three participate in the Commonwealth Parliamentary Association and the Commonwealth Games.