630 feet per second in kilometers per hour

Result

The conversion result is: 630 feet per second is equivalent to 691.2864 kilometers per hour.^[1]

Conversion in the opposite direction

The inverse of the conversion factor is that 1 kilometer per hour is equal to 0.00144657843695464 times 630 feet per second.

It can also be expressed as: 630 feet per second is equal to 1 / 0.00144657843695464 kilometers per hour.

Approximation

An approximate numerical result would be: six hundred and thirty feet per second is about six hundred and ninety-one point two eight kilometers per hour, or alternatively, a kilometer per hour is about zero times six hundred and thirty feet per second.