XinY Units - Convert area units from Acres to Square Miles
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Acres
The acre is a unit of land area used in the imperial and US customary systems. Based upon the International yard and pound agreement of 1959, an acre may be declared as exactly 4,046.8564224 square metres. For context, the area of a baseball field is around 3 acres.
Square Miles
The square mile is an imperial and US unit of measure for area. One square mile is an area equal to the area of a square with sides of length one mile. For context, the size of Texas is 268,597 square miles, compared to the United Kingdom which is 94,530 square miles, and Yellowstone National Park which is 3,471 square miles. The City of London is often called The Square Mile but is actually slightly bigger than that at 1.12 square miles.