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 687 feet into kilometers we have to multiply 687 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

687 ft → L_(km)

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

L_(km) = 687 ft × 0.0003048 km

L_(km) = 0.2093976 km

The final result is:

687 ft → 0.2093976 km

We conclude that 687 feet is equivalent to 0.2093976 kilometers:

687 feet = 0.2093976 kilometers

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilometer is equal to 4.7756039228721 × 687 feet.

Another way is saying that 687 feet is equal to 1 ÷ 4.7756039228721 kilometers.

Approximate result

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

687 ft ≅ 0.209 km

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