Conversion formula

The conversion factor from miles to kilometers is 1.609344, which means that 1 mile is equal to 1.609344 kilometers:

1 mi = 1.609344 km

To convert 342 miles into kilometers we have to multiply 342 by the conversion factor in order to get the length amount from miles to kilometers. We can also form a simple proportion to calculate the result:

1 mi → 1.609344 km

342 mi → L_(km)

Solve the above proportion to obtain the length L in kilometers:

L_(km) = 342 mi × 1.609344 km

L_(km) = 550.395648 km

The final result is:

342 mi → 550.395648 km

We conclude that 342 miles is equivalent to 550.395648 kilometers:

342 miles = 550.395648 kilometers

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilometer is equal to 0.0018168748311033 × 342 miles.

Another way is saying that 342 miles is equal to 1 ÷ 0.0018168748311033 kilometers.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that three hundred forty-two miles is approximately five hundred fifty point three nine six kilometers:

342 mi ≅ 550.396 km

An alternative is also that one kilometer is approximately zero point zero zero two times three hundred forty-two miles.

Conversion table

miles to kilometers chart

For quick reference purposes, below is the conversion table you can use to convert from miles to kilometers