A distance of 3 kilometers is equivalent to 1.86 miles. The formula to convert from kilometers to miles is found by multiplying the kilometers by 0.62 miles per kilometer, as in the equation 3 x 0.62 = 1.86.
The kilometer is the primary unit of distance used in most of the world, with the exception of the United States and the United Kingdom, both of which use the mile as the primary measure for distance. The kilometer belongs to a group of measurements known as the metric system, while the mile is part of the imperial system of measurement. To convert from miles to kilometers, divide the miles by 0.62 miles per kilometer.