Conversion formula

The conversion factor from feet to miles is 0.00018939393939394, which means that 1 foot is equal to 0.00018939393939394 miles:

1 ft = 0.00018939393939394 mi

To convert 428 feet into miles we have to multiply 428 by the conversion factor in order to get the length amount from feet to miles. We can also form a simple proportion to calculate the result:

1 ft → 0.00018939393939394 mi

428 ft → L_(mi)

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

L_(mi) = 428 ft × 0.00018939393939394 mi

L_(mi) = 0.081060606060606 mi

The final result is:

428 ft → 0.081060606060606 mi

We conclude that 428 feet is equivalent to 0.081060606060606 miles:

428 feet = 0.081060606060606 miles

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 mile is equal to 12.336448598131 × 428 feet.

Another way is saying that 428 feet is equal to 1 ÷ 12.336448598131 miles.

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 zero eight one miles:

428 ft ≅ 0.081 mi

An alternative is also that one mile is approximately twelve point three three six times four hundred twenty-eight feet.

Conversion table

feet to miles chart

For quick reference purposes, below is the conversion table you can use to convert from feet to miles