## Conversion formula

The conversion factor from feet per second to kilometers per hour is 1.0972799999991, which means that 1 foot per second is equal to 1.0972799999991 kilometers per hour:

1 ft/s = 1.0972799999991 km/h

To convert 8.4 feet per second into kilometers per hour we have to multiply 8.4 by the conversion factor in order to get the velocity amount from feet per second to kilometers per hour. We can also form a simple proportion to calculate the result:

1 ft/s → 1.0972799999991 km/h

8.4 ft/s → V(km/h)

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

V(km/h) = 8.4 ft/s × 1.0972799999991 km/h

V(km/h) = 9.2171519999926 km/h

The final result is:

8.4 ft/s → 9.2171519999926 km/h

We conclude that 8.4 feet per second is equivalent to 9.2171519999926 kilometers per hour:

8.4 feet per second = 9.2171519999926 kilometers per hour

## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilometer per hour is equal to 0.10849338277168 × 8.4 feet per second.

Another way is saying that 8.4 feet per second is equal to 1 ÷ 0.10849338277168 kilometers per hour.

## Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that eight point four feet per second is approximately nine point two one seven kilometers per hour:

8.4 ft/s ≅ 9.217 km/h

An alternative is also that one kilometer per hour is approximately zero point one zero eight times eight point four feet per second.

## Conversion table

### feet per second to kilometers per hour chart

For quick reference purposes, below is the conversion table you can use to convert from feet per second to kilometers per hour

feet per second (ft/s) kilometers per hour (km/h)
9.4 feet per second 10.314 kilometers per hour
10.4 feet per second 11.412 kilometers per hour
11.4 feet per second 12.509 kilometers per hour
12.4 feet per second 13.606 kilometers per hour
13.4 feet per second 14.704 kilometers per hour
14.4 feet per second 15.801 kilometers per hour
15.4 feet per second 16.898 kilometers per hour
16.4 feet per second 17.995 kilometers per hour
17.4 feet per second 19.093 kilometers per hour
18.4 feet per second 20.19 kilometers per hour