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 8400 feet per second into kilometers per hour we have to multiply 8400 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

8400 ft/s → V_(km/h)

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

V_(km/h) = 8400 ft/s × 1.0972799999991 km/h

V_(km/h) = 9217.1519999926 km/h

The final result is:

8400 ft/s → 9217.1519999926 km/h

We conclude that 8400 feet per second is equivalent to 9217.1519999926 kilometers per hour:

8400 feet per second = 9217.1519999926 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 0.00010849338277168 × 8400 feet per second.

Another way is saying that 8400 feet per second is equal to 1 ÷ 0.00010849338277168 kilometers per hour.

Approximate result

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

8400 ft/s ≅ 9217.152 km/h

An alternative is also that one kilometer per hour is approximately zero times eight thousand four hundred 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