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 689.6 feet into kilometers we have to multiply 689.6 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

689.6 ft → L_(km)

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

L_(km) = 689.6 ft × 0.0003048 km

L_(km) = 0.21019008 km

The final result is:

689.6 ft → 0.21019008 km

We conclude that 689.6 feet is equivalent to 0.21019008 kilometers:

689.6 feet = 0.21019008 kilometers

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilometer is equal to 4.7575984556455 × 689.6 feet.

Another way is saying that 689.6 feet is equal to 1 ÷ 4.7575984556455 kilometers.

Approximate result

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

689.6 ft ≅ 0.21 km

An alternative is also that one kilometer is approximately four point seven five eight times six hundred eighty-nine point six 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