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 3521 feet into miles we have to multiply 3521 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

3521 ft → L_(mi)

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

L_(mi) = 3521 ft × 0.00018939393939394 mi

L_(mi) = 0.66685606060606 mi

The final result is:

3521 ft → 0.66685606060606 mi

We conclude that 3521 feet is equivalent to 0.66685606060606 miles:

3521 feet = 0.66685606060606 miles

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 mile is equal to 1.4995739846634 × 3521 feet.

Another way is saying that 3521 feet is equal to 1 ÷ 1.4995739846634 miles.

Approximate result

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

3521 ft ≅ 0.667 mi

An alternative is also that one mile is approximately one point five times three thousand five hundred twenty-one 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