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 686 feet into kilometers we have to multiply 686 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

686 ft → L_(km)

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

L_(km) = 686 ft × 0.0003048 km

L_(km) = 0.2090928 km

The final result is:

686 ft → 0.2090928 km

We conclude that 686 feet is equivalent to 0.2090928 kilometers:

686 feet = 0.2090928 kilometers

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilometer is equal to 4.7825654446255 × 686 feet.

Another way is saying that 686 feet is equal to 1 ÷ 4.7825654446255 kilometers.

Approximate result

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

686 ft ≅ 0.209 km

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