## 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 42.5 feet per second into kilometers per hour we have to multiply 42.5 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

42.5 ft/s → V(km/h)

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

V(km/h) = 42.5 ft/s × 1.0972799999991 km/h

V(km/h) = 46.634399999963 km/h

The final result is:

42.5 ft/s → 46.634399999963 km/h

We conclude that 42.5 feet per second is equivalent to 46.634399999963 kilometers per hour:

42.5 feet per second = 46.634399999963 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 0.021443398006639 × 42.5 feet per second.

Another way is saying that 42.5 feet per second is equal to 1 ÷ 0.021443398006639 kilometers per hour.

## Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that forty-two point five feet per second is approximately forty-six point six three four kilometers per hour:

42.5 ft/s ≅ 46.634 km/h

An alternative is also that one kilometer per hour is approximately zero point zero two one times forty-two point five 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)
43.5 feet per second 47.732 kilometers per hour
44.5 feet per second 48.829 kilometers per hour
45.5 feet per second 49.926 kilometers per hour
46.5 feet per second 51.024 kilometers per hour
47.5 feet per second 52.121 kilometers per hour
48.5 feet per second 53.218 kilometers per hour
49.5 feet per second 54.315 kilometers per hour
50.5 feet per second 55.413 kilometers per hour
51.5 feet per second 56.51 kilometers per hour
52.5 feet per second 57.607 kilometers per hour