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 1686 feet into miles we have to multiply 1686 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

1686 ft → L_(mi)

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

L_(mi) = 1686 ft × 0.00018939393939394 mi

L_(mi) = 0.31931818181818 mi

The final result is:

1686 ft → 0.31931818181818 mi

We conclude that 1686 feet is equivalent to 0.31931818181818 miles:

1686 feet = 0.31931818181818 miles

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 mile is equal to 3.1316725978648 × 1686 feet.

Another way is saying that 1686 feet is equal to 1 ÷ 3.1316725978648 miles.

Approximate result

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

1686 ft ≅ 0.319 mi

An alternative is also that one mile is approximately three point one three two times one thousand six hundred eighty-six 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