How much land was added to the United States as a result of the Louisiana Purchase? (in miles)

The Louisiana Purchase added 828,000 square miles to the United States or 530,000,000 acres.

The land was bought for $15 million dollars from France in 1803. $15 million dollars in 1803 is equivalent to $307,391,263.51 dollars today!

It added 13 states to the United States, and if you do the math, each acre was bought for 3 cents each!

I had a history test just about a half hour ago and one of the questions was on the significance of the Louisiana Purchase! I remembered this answer so it helped me out a bit