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 1390 feet into kilometers we have to multiply 1390 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

1390 ft → L_(km)

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

L_(km) = 1390 ft × 0.0003048 km

L_(km) = 0.423672 km

The final result is:

1390 ft → 0.423672 km

We conclude that 1390 feet is equivalent to 0.423672 kilometers:

1390 feet = 0.423672 kilometers

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilometer is equal to 2.3603164712325 × 1390 feet.

Another way is saying that 1390 feet is equal to 1 ÷ 2.3603164712325 kilometers.

Approximate result

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

1390 ft ≅ 0.424 km

An alternative is also that one kilometer is approximately two point three six times one thousand three hundred ninety 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