Conversion formula

The conversion factor from feet to kilometers is 0.0003048, which means that 1 foot is equal to 0.0003048 kilometers:

1 ft = 0.0003048 km

To convert 4240 feet into kilometers we have to multiply 4240 by the conversion factor in order to get the length amount from feet to kilometers. We can also form a simple proportion to calculate the result:

1 ft → 0.0003048 km

4240 ft → L_(km)

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

L_(km) = 4240 ft × 0.0003048 km

L_(km) = 1.292352 km

The final result is:

4240 ft → 1.292352 km

We conclude that 4240 feet is equivalent to 1.292352 kilometers:

4240 feet = 1.292352 kilometers

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilometer is equal to 0.77378299410687 × 4240 feet.

Another way is saying that 4240 feet is equal to 1 ÷ 0.77378299410687 kilometers.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that four thousand two hundred forty feet is approximately one point two nine two kilometers:

4240 ft ≅ 1.292 km

An alternative is also that one kilometer is approximately zero point seven seven four times four thousand two hundred forty feet.

Conversion table

feet to kilometers chart

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