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 840 feet into miles we have to multiply 840 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

840 ft → L_(mi)

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

L_(mi) = 840 ft × 0.00018939393939394 mi

L_(mi) = 0.15909090909091 mi

The final result is:

840 ft → 0.15909090909091 mi

We conclude that 840 feet is equivalent to 0.15909090909091 miles:

840 feet = 0.15909090909091 miles

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 mile is equal to 6.2857142857143 × 840 feet.

Another way is saying that 840 feet is equal to 1 ÷ 6.2857142857143 miles.

Approximate result

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

840 ft ≅ 0.159 mi

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