15 miles
Miles and miles are the same measurement. Therefore, he would be able to see 12 miles.
You time the miles by 1.609 to convert to kilometers and you can times the kilometers by 0.6214 to see the amount of miles
452.38896 square miles
I see them regularly at 250,000 miles
43
See in uranus
If a person is able to see 12 miles on all sides, a total of 452.4 square miles can be viewed. The formula is pi x r2 = 3.1416 x 144 = 452.4.
There are 2,816,000 yards in 1600 miles. See the link below which allows you to enter any number of miles and see how many yards it is. It also provides links to sites which do automatic conversion for many other measures.
One foot = about 0.000189 miles.
The one in Portland is about 2300 miles. The one in Maine is about 1050 miles.
The one in Arizona is 1410 miles. The one in Colorado is 1391 miles.