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 40.8 feet per second into miles per hour we have to multiply 40.8 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

40.8 ft/s → V(mph)

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

V(mph) = 40.8 ft/s × 0.68181818181818 mph

V(mph) = 27.818181818182 mph

The final result is:

40.8 ft/s → 27.818181818182 mph

We conclude that 40.8 feet per second is equivalent to 27.818181818182 miles per hour:

40.8 feet per second = 27.818181818182 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 0.035947712418301 × 40.8 feet per second.

Another way is saying that 40.8 feet per second is equal to 1 ÷ 0.035947712418301 miles per hour.

Approximate result

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

40.8 ft/s ≅ 27.818 mph

An alternative is also that one mile per hour is approximately zero point zero three six times forty point eight 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)
41.8 feet per second 28.5 miles per hour
42.8 feet per second 29.182 miles per hour
43.8 feet per second 29.864 miles per hour
44.8 feet per second 30.545 miles per hour
45.8 feet per second 31.227 miles per hour
46.8 feet per second 31.909 miles per hour
47.8 feet per second 32.591 miles per hour
48.8 feet per second 33.273 miles per hour
49.8 feet per second 33.955 miles per hour
50.8 feet per second 34.636 miles per hour