Conversion in the opposite direction
The inverse of the conversion factor is that 1 kilometer per hour is equal to 0.000642805718399671 times 840 knots.
It can also be expressed as: 840 knots is equal to kilometers per hour.
An approximate numerical result would be: eight hundred and forty knots is about zero kilometers per hour, or alternatively, a kilometer per hour is about zero times eight hundred and forty knots.
 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.