Conversion formula

The conversion factor from kilometers to miles is 0.62137119223733, which means that 1 kilometer is equal to 0.62137119223733 miles:

1 km = 0.62137119223733 mi

To convert 20.4 kilometers into miles we have to multiply 20.4 by the conversion factor in order to get the length amount from kilometers to miles. We can also form a simple proportion to calculate the result:

1 km → 0.62137119223733 mi

20.4 km → L_(mi)

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

L_(mi) = 20.4 km × 0.62137119223733 mi

L_(mi) = 12.675972321642 mi

The final result is:

20.4 km → 12.675972321642 mi

We conclude that 20.4 kilometers is equivalent to 12.675972321642 miles:

20.4 kilometers = 12.675972321642 miles

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 mile is equal to 0.078889411764706 × 20.4 kilometers.

Another way is saying that 20.4 kilometers is equal to 1 ÷ 0.078889411764706 miles.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that twenty point four kilometers is approximately twelve point six seven six miles:

20.4 km ≅ 12.676 mi

An alternative is also that one mile is approximately zero point zero seven nine times twenty point four kilometers.

Conversion table

kilometers to miles chart

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