## 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 42.4 feet per second into miles per hour we have to multiply 42.4 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

42.4 ft/s → V(mph)

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

V(mph) = 42.4 ft/s × 0.68181818181818 mph

V(mph) = 28.909090909091 mph

The final result is:

42.4 ft/s → 28.909090909091 mph

We conclude that 42.4 feet per second is equivalent to 28.909090909091 miles per hour:

42.4 feet per second = 28.909090909091 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 0.034591194968553 × 42.4 feet per second.

Another way is saying that 42.4 feet per second is equal to 1 ÷ 0.034591194968553 miles per hour.

## Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that forty-two point four feet per second is approximately twenty-eight point nine zero nine miles per hour:

42.4 ft/s ≅ 28.909 mph

An alternative is also that one mile per hour is approximately zero point zero three five times forty-two 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)
43.4 feet per second 29.591 miles per hour
44.4 feet per second 30.273 miles per hour
45.4 feet per second 30.955 miles per hour
46.4 feet per second 31.636 miles per hour
47.4 feet per second 32.318 miles per hour
48.4 feet per second 33 miles per hour
49.4 feet per second 33.682 miles per hour
50.4 feet per second 34.364 miles per hour
51.4 feet per second 35.045 miles per hour
52.4 feet per second 35.727 miles per hour