## 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 40 kilometers into miles we have to multiply 40 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

40 km → L(mi)

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

L(mi) = 40 km × 0.62137119223733 mi

L(mi) = 24.854847689493 mi

The final result is:

40 km → 24.854847689493 mi

We conclude that 40 kilometers is equivalent to 24.854847689493 miles:

40 kilometers = 24.854847689493 miles ## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 mile is equal to 0.0402336 × 40 kilometers.

Another way is saying that 40 kilometers is equal to 1 ÷ 0.0402336 miles.

## Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that forty kilometers is approximately twenty-four point eight five five miles:

40 km ≅ 24.855 mi

An alternative is also that one mile is approximately zero point zero four times forty 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

kilometers (km) miles (mi)
41 kilometers 25.476 miles
42 kilometers 26.098 miles
43 kilometers 26.719 miles
44 kilometers 27.34 miles
45 kilometers 27.962 miles
46 kilometers 28.583 miles
47 kilometers 29.204 miles
48 kilometers 29.826 miles
49 kilometers 30.447 miles
50 kilometers 31.069 miles