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 428 feet into kilometers we have to multiply 428 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

428 ft → L_(km)

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

L_(km) = 428 ft × 0.0003048 km

L_(km) = 0.1304544 km

The final result is:

428 ft → 0.1304544 km

We conclude that 428 feet is equivalent to 0.1304544 kilometers:

428 feet = 0.1304544 kilometers

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilometer is equal to 7.6655137733951 × 428 feet.

Another way is saying that 428 feet is equal to 1 ÷ 7.6655137733951 kilometers.

Approximate result

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

428 ft ≅ 0.13 km

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