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 3988 feet into kilometers we have to multiply 3988 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

3988 ft → L_(km)

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

L_(km) = 3988 ft × 0.0003048 km

L_(km) = 1.2155424 km

The final result is:

3988 ft → 1.2155424 km

We conclude that 3988 feet is equivalent to 1.2155424 kilometers:

3988 feet = 1.2155424 kilometers

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilometer is equal to 0.82267800777661 × 3988 feet.

Another way is saying that 3988 feet is equal to 1 ÷ 0.82267800777661 kilometers.

Approximate result

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

3988 ft ≅ 1.216 km

An alternative is also that one kilometer is approximately zero point eight two three times three thousand nine hundred eighty-eight 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