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Unit Converter

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 138.8 feet per second into miles per hour we have to multiply 138.8 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

138.8 ft/s → V(mph)

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

V(mph) = 138.8 ft/s × 0.68181818181818 mph

V(mph) = 94.636363636364 mph

The final result is:

138.8 ft/s → 94.636363636364 mph

We conclude that 138.8 feet per second is equivalent to 94.636363636364 miles per hour:

138.8 feet per second = 94.636363636364 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 0.010566762728146 × 138.8 feet per second.

Another way is saying that 138.8 feet per second is equal to 1 ÷ 0.010566762728146 miles per hour.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that one hundred thirty-eight point eight feet per second is approximately ninety-four point six three six miles per hour:

138.8 ft/s ≅ 94.636 mph

An alternative is also that one mile per hour is approximately zero point zero one one times one hundred thirty-eight 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)
139.8 feet per second 95.318 miles per hour
140.8 feet per second 96 miles per hour
141.8 feet per second 96.682 miles per hour
142.8 feet per second 97.364 miles per hour
143.8 feet per second 98.045 miles per hour
144.8 feet per second 98.727 miles per hour
145.8 feet per second 99.409 miles per hour
146.8 feet per second 100.091 miles per hour
147.8 feet per second 100.773 miles per hour
148.8 feet per second 101.455 miles per hour