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To calculate the area of a structure or section of land mass in square miles, use the formula for area of the section's shape with the dimensions, such as length, width, and radius, in miles. Not all sections of land or buildings have a simple shape, in which case the s...


The Earth's total surface area is nearly 197 million square miles. Approximately 71 percent of the Earth's surface area is covered in water, and the remaining 29 percent is land. The Earth's total land surface area is about 57 million square miles.


A square foot is a measure of surface area, and a mile is a measure of length. There are 5,280 feet in a mile and 27,878,400 square feet in a square mile.


To convert metric kilometers into customary miles, multiply the kilometers by a conversion rate of 0.6214. Using this conversion, 1 kilometer is equal to 0.6214 miles.


Five kilometers is equal to 1.86 miles, but when rounded to the appropriate significant figures, that would be 2.0 miles. The conversion is performed by multiplying the number of kilometers by .62137, which is called a conversion factor.


One square mile equals 640 survey acres. A survey acre is a U.S. customary unit of area derived from the Imperial system of measurement and is used primarily in the United States.


Converting meters to miles takes less than a minute using a calculator, or slightly longer using a pencil and paper. Simply divide 1,200 meters by the conversion factor of 1609.344 meters per mile to arrive at the equivalent value in miles.