690 kilometers per hour in feet per second

Result

The conversion result is: 690 kilometers per hour is equivalent to 628.827646544182 feet per second.^[1]

Conversion in the opposite direction

The inverse of the conversion factor is that 1 foot per second is equal to 0.00159026086956522 times 690 kilometers per hour.

It can also be expressed as: 690 kilometers per hour is equal to 1 / 0.00159026086956522 feet per second.

Approximation

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