## 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 13.8 feet per second into kilometers per hour we have to multiply 13.8 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

13.8 ft/s → V(km/h)

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

V(km/h) = 13.8 ft/s × 1.0972799999991 km/h

V(km/h) = 15.142463999988 km/h

The final result is:

13.8 ft/s → 15.142463999988 km/h

We conclude that 13.8 feet per second is equivalent to 15.142463999988 kilometers per hour:

13.8 feet per second = 15.142463999988 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 0.066039450382765 × 13.8 feet per second.

Another way is saying that 13.8 feet per second is equal to 1 ÷ 0.066039450382765 kilometers per hour.

## Approximate result

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

13.8 ft/s ≅ 15.142 km/h

An alternative is also that one kilometer per hour is approximately zero point zero six six times thirteen point eight 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)
14.8 feet per second 16.24 kilometers per hour
15.8 feet per second 17.337 kilometers per hour
16.8 feet per second 18.434 kilometers per hour
17.8 feet per second 19.532 kilometers per hour
18.8 feet per second 20.629 kilometers per hour
19.8 feet per second 21.726 kilometers per hour
20.8 feet per second 22.823 kilometers per hour
21.8 feet per second 23.921 kilometers per hour
22.8 feet per second 25.018 kilometers per hour
23.8 feet per second 26.115 kilometers per hour