## 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 280 feet per second into kilometers per hour we have to multiply 280 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

280 ft/s → V(km/h)

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

V(km/h) = 280 ft/s × 1.0972799999991 km/h

V(km/h) = 307.23839999975 km/h

The final result is:

280 ft/s → 307.23839999975 km/h

We conclude that 280 feet per second is equivalent to 307.23839999975 kilometers per hour:

280 feet per second = 307.23839999975 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 0.0032548014831505 × 280 feet per second.

Another way is saying that 280 feet per second is equal to 1 ÷ 0.0032548014831505 kilometers per hour.

## Approximate result

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

280 ft/s ≅ 307.238 km/h

An alternative is also that one kilometer per hour is approximately zero point zero zero three times two hundred eighty 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)
281 feet per second 308.336 kilometers per hour
282 feet per second 309.433 kilometers per hour
283 feet per second 310.53 kilometers per hour
284 feet per second 311.628 kilometers per hour
285 feet per second 312.725 kilometers per hour
286 feet per second 313.822 kilometers per hour
287 feet per second 314.919 kilometers per hour
288 feet per second 316.017 kilometers per hour
289 feet per second 317.114 kilometers per hour
290 feet per second 318.211 kilometers per hour