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 615 feet per second into kilometers per hour we have to multiply 615 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

615 ft/s → V_(km/h)

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

V_(km/h) = 615 ft/s × 1.0972799999991 km/h

V_(km/h) = 674.82719999946 km/h

The final result is:

615 ft/s → 674.82719999946 km/h

We conclude that 615 feet per second is equivalent to 674.82719999946 kilometers per hour:

615 feet per second = 674.82719999946 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 0.0014818608378572 × 615 feet per second.

Another way is saying that 615 feet per second is equal to 1 ÷ 0.0014818608378572 kilometers per hour.

Approximate result

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

615 ft/s ≅ 674.827 km/h

An alternative is also that one kilometer per hour is approximately zero point zero zero one times six hundred fifteen 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