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 642 feet into miles we have to multiply 642 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

642 ft → L_(mi)

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

L_(mi) = 642 ft × 0.00018939393939394 mi

L_(mi) = 0.12159090909091 mi

The final result is:

642 ft → 0.12159090909091 mi

We conclude that 642 feet is equivalent to 0.12159090909091 miles:

642 feet = 0.12159090909091 miles

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 mile is equal to 8.2242990654206 × 642 feet.

Another way is saying that 642 feet is equal to 1 ÷ 8.2242990654206 miles.

Approximate result

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

642 ft ≅ 0.122 mi

An alternative is also that one mile is approximately eight point two two four times six hundred forty-two 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