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 355 feet per second into miles per hour we have to multiply 355 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

355 ft/s → V_(mph)

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

V_(mph) = 355 ft/s × 0.68181818181818 mph

V_(mph) = 242.04545454545 mph

The final result is:

355 ft/s → 242.04545454545 mph

We conclude that 355 feet per second is equivalent to 242.04545454545 miles per hour:

355 feet per second = 242.04545454545 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 0.004131455399061 × 355 feet per second.

Another way is saying that 355 feet per second is equal to 1 ÷ 0.004131455399061 miles per hour.

Approximate result

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

355 ft/s ≅ 242.045 mph

An alternative is also that one mile per hour is approximately zero point zero zero four times three hundred fifty-five 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