## Conversion formula

The conversion factor from feet per second to miles per hour is 0.68181818181818, which means that 1 foot per second is equal to 0.68181818181818 miles per hour:

1 ft/s = 0.68181818181818 mph

To convert 12.4 feet per second into miles per hour we have to multiply 12.4 by the conversion factor in order to get the velocity amount from feet per second to miles per hour. We can also form a simple proportion to calculate the result:

1 ft/s → 0.68181818181818 mph

12.4 ft/s → V(mph)

Solve the above proportion to obtain the velocity V in miles per hour:

V(mph) = 12.4 ft/s × 0.68181818181818 mph

V(mph) = 8.4545454545455 mph

The final result is:

12.4 ft/s → 8.4545454545455 mph

We conclude that 12.4 feet per second is equivalent to 8.4545454545455 miles per hour:

12.4 feet per second = 8.4545454545455 miles per hour ## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 mile per hour is equal to 0.11827956989247 × 12.4 feet per second.

Another way is saying that 12.4 feet per second is equal to 1 ÷ 0.11827956989247 miles per hour.

## Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that twelve point four feet per second is approximately eight point four five five miles per hour:

12.4 ft/s ≅ 8.455 mph

An alternative is also that one mile per hour is approximately zero point one one eight times twelve point four feet per second.

## Conversion table

### feet per second to miles per hour chart

For quick reference purposes, below is the conversion table you can use to convert from feet per second to miles per hour

feet per second (ft/s) miles per hour (mph)
13.4 feet per second 9.136 miles per hour
14.4 feet per second 9.818 miles per hour
15.4 feet per second 10.5 miles per hour
16.4 feet per second 11.182 miles per hour
17.4 feet per second 11.864 miles per hour
18.4 feet per second 12.545 miles per hour
19.4 feet per second 13.227 miles per hour
20.4 feet per second 13.909 miles per hour
21.4 feet per second 14.591 miles per hour
22.4 feet per second 15.273 miles per hour