The distance from a port Huron to the Indiana state line = 271 miles (approx)
We have to express the given distance into kilometers.
Since, 1 mile = 1.61 kilometers.
To convert the unit "miles" to "kilometer", we have to multiply the given miles by 1.61 to get the required kilometers.
Therefore, distance in kilometers = kilometers
= 436.3 kilometers.
Therefore, the distance from a port Huron to the Indiana state line in kilometers is 436.3 kilometers.