686 meters per second in feet per second
Result
The conversion result is: 686 meters per second is equivalent to 2250.656167979 feet per second.[1]
Conversion in the opposite direction
The inverse of the conversion factor is that 1 foot per second is equal to 0.000444314868804665 times 686 meters per second.
It can also be expressed as: 686 meters per second is equal to 1 / 0.000444314868804665 feet per second.
Approximation
An approximate numerical result would be: six hundred and eighty-six meters per second is about two thousand, two hundred and fifty point six five feet per second, or alternatively, a foot per second is about zero times six hundred and eighty-six meters per second.
Footnotes
[1] 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.