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 8.1 feet per second into kilometers per hour we have to multiply 8.1 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

8.1 ft/s → V(km/h)

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

V(km/h) = 8.1 ft/s × 1.0972799999991 km/h

V(km/h) = 8.8879679999929 km/h

The final result is:

8.1 ft/s → 8.8879679999929 km/h

We conclude that 8.1 feet per second is equivalent to 8.8879679999929 kilometers per hour:

8.1 feet per second = 8.8879679999929 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 0.11251165620767 × 8.1 feet per second.

Another way is saying that 8.1 feet per second is equal to 1 ÷ 0.11251165620767 kilometers per hour.

Approximate result

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

8.1 ft/s ≅ 8.888 km/h

An alternative is also that one kilometer per hour is approximately zero point one one three times eight point one 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)
9.1 feet per second 9.985 kilometers per hour
10.1 feet per second 11.083 kilometers per hour
11.1 feet per second 12.18 kilometers per hour
12.1 feet per second 13.277 kilometers per hour
13.1 feet per second 14.374 kilometers per hour
14.1 feet per second 15.472 kilometers per hour
15.1 feet per second 16.569 kilometers per hour
16.1 feet per second 17.666 kilometers per hour
17.1 feet per second 18.763 kilometers per hour
18.1 feet per second 19.861 kilometers per hour