## 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 388 feet per second into miles per hour we have to multiply 388 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

388 ft/s → V(mph)

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

V(mph) = 388 ft/s × 0.68181818181818 mph

V(mph) = 264.54545454545 mph

The final result is:

388 ft/s → 264.54545454545 mph

We conclude that 388 feet per second is equivalent to 264.54545454545 miles per hour:

388 feet per second = 264.54545454545 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 0.0037800687285223 × 388 feet per second.

Another way is saying that 388 feet per second is equal to 1 ÷ 0.0037800687285223 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 eighty-eight feet per second is approximately two hundred sixty-four point five four five miles per hour:

388 ft/s ≅ 264.545 mph

An alternative is also that one mile per hour is approximately zero point zero zero four times three hundred eighty-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)
389 feet per second 265.227 miles per hour
390 feet per second 265.909 miles per hour
391 feet per second 266.591 miles per hour
392 feet per second 267.273 miles per hour
393 feet per second 267.955 miles per hour
394 feet per second 268.636 miles per hour
395 feet per second 269.318 miles per hour
396 feet per second 270 miles per hour
397 feet per second 270.682 miles per hour
398 feet per second 271.364 miles per hour