Conversion in the opposite direction
The inverse of the conversion factor is that 1 kilometer per hour is equal to 0.00132078900765424 times 690 feet per second.
It can also be expressed as: 690 feet per second is equal to kilometers per hour.
An approximate numerical result would be: six hundred and ninety feet per second is about seven hundred and fifty-seven point one two kilometers per hour, or alternatively, a kilometer per hour is about zero times six hundred and ninety feet per second.
 The precision is 15 significant digits (fourteen digits to the right of the decimal point).Results may contain small errors due to the use of floating point arithmetic.