How many sq mi in 1 sq km?
The answer is 0.386102158542.
We assume you are converting between square mile and square kilometre.
You can view more details on each measurement unit:
sq mi or sq km
The SI derived unit for area is the square meter.
1 square meter is equal to 3.86102158542E-7 sq mi, or 1.0E-6 sq km.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between square miles and square kilometers.
Type in your own numbers in the form to convert the units!
A square mile is defined as the area of a square with sides one mile in length.
The definition of a mile is as follows:
A mile is any of several units of distance, or, in physics terminology, of length. Today, one mile is mainly equal to about 1609 m on land and 1852 m at sea and in the air, but see below for the details. The abbreviation for mile is 'mi'. There are more specific definitions of 'mile' such as the metric mile, statute mile, nautical mile, and survey mile. On this site, we assume that if you only specify 'mile' you want the statute mile.
ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!
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