## 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 63.9 feet per second into miles per hour we have to multiply 63.9 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

63.9 ft/s → V(mph)

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

V(mph) = 63.9 ft/s × 0.68181818181818 mph

V(mph) = 43.568181818182 mph

The final result is:

63.9 ft/s → 43.568181818182 mph

We conclude that 63.9 feet per second is equivalent to 43.568181818182 miles per hour:

63.9 feet per second = 43.568181818182 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 0.022952529994784 × 63.9 feet per second.

Another way is saying that 63.9 feet per second is equal to 1 ÷ 0.022952529994784 miles per hour.

## Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that sixty-three point nine feet per second is approximately forty-three point five six eight miles per hour:

63.9 ft/s ≅ 43.568 mph

An alternative is also that one mile per hour is approximately zero point zero two three times sixty-three point nine 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)
64.9 feet per second 44.25 miles per hour
65.9 feet per second 44.932 miles per hour
66.9 feet per second 45.614 miles per hour
67.9 feet per second 46.295 miles per hour
68.9 feet per second 46.977 miles per hour
69.9 feet per second 47.659 miles per hour
70.9 feet per second 48.341 miles per hour
71.9 feet per second 49.023 miles per hour
72.9 feet per second 49.705 miles per hour
73.9 feet per second 50.386 miles per hour