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 221 feet into miles we have to multiply 221 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

221 ft → L_(mi)

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

L_(mi) = 221 ft × 0.00018939393939394 mi

L_(mi) = 0.041856060606061 mi

The final result is:

221 ft → 0.041856060606061 mi

We conclude that 221 feet is equivalent to 0.041856060606061 miles:

221 feet = 0.041856060606061 miles

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 mile is equal to 23.891402714932 × 221 feet.

Another way is saying that 221 feet is equal to 1 ÷ 23.891402714932 miles.

Approximate result

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

221 ft ≅ 0.042 mi

An alternative is also that one mile is approximately twenty-three point eight nine one times two 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