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

9 ft/s → V(mph)

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

V(mph) = 9 ft/s × 0.68181818181818 mph

V(mph) = 6.1363636363636 mph

The final result is:

9 ft/s → 6.1363636363636 mph

We conclude that 9 feet per second is equivalent to 6.1363636363636 miles per hour:

9 feet per second = 6.1363636363636 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 0.16296296296296 × 9 feet per second.

Another way is saying that 9 feet per second is equal to 1 ÷ 0.16296296296296 miles per hour.

## Approximate result

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

9 ft/s ≅ 6.136 mph

An alternative is also that one mile per hour is approximately zero point one six three times 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)
10 feet per second 6.818 miles per hour
11 feet per second 7.5 miles per hour
12 feet per second 8.182 miles per hour
13 feet per second 8.864 miles per hour
14 feet per second 9.545 miles per hour
15 feet per second 10.227 miles per hour
16 feet per second 10.909 miles per hour
17 feet per second 11.591 miles per hour
18 feet per second 12.273 miles per hour
19 feet per second 12.955 miles per hour