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 4220 feet into miles we have to multiply 4220 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

4220 ft → L_(mi)

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

L_(mi) = 4220 ft × 0.00018939393939394 mi

L_(mi) = 0.79924242424242 mi

The final result is:

4220 ft → 0.79924242424242 mi

We conclude that 4220 feet is equivalent to 0.79924242424242 miles:

4220 feet = 0.79924242424242 miles

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 mile is equal to 1.2511848341232 × 4220 feet.

Another way is saying that 4220 feet is equal to 1 ÷ 1.2511848341232 miles.

Approximate result

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

4220 ft ≅ 0.799 mi

An alternative is also that one mile is approximately one point two five one times four thousand two hundred twenty 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