Conversion formula

The conversion factor from kilometers per hour to feet per second is 0.91134441528215, which means that 1 kilometer per hour is equal to 0.91134441528215 feet per second:

1 km/h = 0.91134441528215 ft/s

To convert 8421 kilometers per hour into feet per second we have to multiply 8421 by the conversion factor in order to get the velocity amount from kilometers per hour to feet per second. We can also form a simple proportion to calculate the result:

1 km/h → 0.91134441528215 ft/s

8421 km/h → V_(ft/s)

Solve the above proportion to obtain the velocity V in feet per second:

V_(ft/s) = 8421 km/h × 0.91134441528215 ft/s

V_(ft/s) = 7674.431321091 ft/s

The final result is:

8421 km/h → 7674.431321091 ft/s

We conclude that 8421 kilometers per hour is equivalent to 7674.431321091 feet per second:

8421 kilometers per hour = 7674.431321091 feet per second

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 foot per second is equal to 0.00013030281439249 × 8421 kilometers per hour.

Another way is saying that 8421 kilometers per hour is equal to 1 ÷ 0.00013030281439249 feet per second.

Approximate result

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

8421 km/h ≅ 7674.431 ft/s

An alternative is also that one foot per second is approximately zero times eight thousand four hundred twenty-one kilometers per hour.

Conversion table

kilometers per hour to feet per second chart

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