## 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 139 feet per second into kilometers per hour we have to multiply 139 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

139 ft/s → V(km/h)

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

V(km/h) = 139 ft/s × 1.0972799999991 km/h

V(km/h) = 152.52191999988 km/h

The final result is:

139 ft/s → 152.52191999988 km/h

We conclude that 139 feet per second is equivalent to 152.52191999988 kilometers per hour:

139 feet per second = 152.52191999988 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 0.0065564346423176 × 139 feet per second.

Another way is saying that 139 feet per second is equal to 1 ÷ 0.0065564346423176 kilometers per hour.

## Approximate result

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

139 ft/s ≅ 152.522 km/h

An alternative is also that one kilometer per hour is approximately zero point zero zero seven times one hundred thirty-nine 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)
140 feet per second 153.619 kilometers per hour
141 feet per second 154.716 kilometers per hour
142 feet per second 155.814 kilometers per hour
143 feet per second 156.911 kilometers per hour
144 feet per second 158.008 kilometers per hour
145 feet per second 159.106 kilometers per hour
146 feet per second 160.203 kilometers per hour
147 feet per second 161.3 kilometers per hour
148 feet per second 162.397 kilometers per hour
149 feet per second 163.495 kilometers per hour