Could the UK Hold 10.6 Billion People?

&#62; The United Kingdom’s land area is 243,610,000m2.<p>No, it isn't. Wolfram Alpha reports that it is 249,430 km^2. To convert from km^2 to m^2, you multiply by 1000000, not 1000.<p>This throws all your calculations off by a factor of 1000.<p>Schoolboy error.

&#62; If every centimeter of the United Kingdom’s land had a house built on it with a floor size of 76m2, the UK could only fit 3.2million houses. The UK currently has approximately 25million houses.<p>If it can only fit 3.2M houses, how can there be 25M already? Math error.<p>Also the blog's title is "Could the UK Hold 4.1 Billion People?", not "10.6 Billion" as in the HN submission.<p>I wish one could downvote submissions of poor quality to negative levels.

Bigger houses with more people per house - better support to look after old people at home or keep young people there while they study.<p>Better flats - much better noise insulation, with energy efficiency and better local infrastructure (especially local transport), so singletons use space efficiently.