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 424 miles into kilometers we have to multiply 424 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

424 mi → L_(km)

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

L_(km) = 424 mi × 1.609344 km

L_(km) = 682.361856 km

The final result is:

424 mi → 682.361856 km

We conclude that 424 miles is equivalent to 682.361856 kilometers:

424 miles = 682.361856 kilometers

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilometer is equal to 0.0014654980948994 × 424 miles.

Another way is saying that 424 miles is equal to 1 ÷ 0.0014654980948994 kilometers.

Approximate result

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

424 mi ≅ 682.362 km

An alternative is also that one kilometer is approximately zero point zero zero one times four hundred twenty-four 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