Unit Converter
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 138.7 feet per second into kilometers per hour we have to multiply 138.7 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
138.7 ft/s → V(km/h)
Solve the above proportion to obtain the velocity V in kilometers per hour:
V(km/h) = 138.7 ft/s × 1.0972799999991 km/h
V(km/h) = 152.19273599988 km/h
The final result is:
138.7 ft/s → 152.19273599988 km/h
We conclude that 138.7 feet per second is equivalent to 152.19273599988 kilometers per hour:
138.7 feet per second = 152.19273599988 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 0.006570615827557 × 138.7 feet per second.
Another way is saying that 138.7 feet per second is equal to 1 ÷ 0.006570615827557 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-eight point seven feet per second is approximately one hundred fifty-two point one nine three kilometers per hour:
138.7 ft/s ≅ 152.193 km/h
An alternative is also that one kilometer per hour is approximately zero point zero zero seven times one hundred thirty-eight point seven 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) |
---|---|
139.7 feet per second | 153.29 kilometers per hour |
140.7 feet per second | 154.387 kilometers per hour |
141.7 feet per second | 155.485 kilometers per hour |
142.7 feet per second | 156.582 kilometers per hour |
143.7 feet per second | 157.679 kilometers per hour |
144.7 feet per second | 158.776 kilometers per hour |
145.7 feet per second | 159.874 kilometers per hour |
146.7 feet per second | 160.971 kilometers per hour |
147.7 feet per second | 162.068 kilometers per hour |
148.7 feet per second | 163.166 kilometers per hour |