If I hadn't spent my nights dreaming of nubile females I would never date, I would have been able to stay awake in science class and then I would totally get what you're talking about.
So the palfinger chart I posted just has similar numbers in the charts showing kN and kg. If you can transpose some decimal points- which is what I was assimilating from the (k) meaning thousands. Which from 34 years ago high school was the whole point of the metric system- the ease of swapping in groups of 10's and moving around decimal points. Which I obviously wasn't really paying attention at.
And now I'm going to stop posting of my total ignorance of the metric system, and go back to looking at old grove crane charts, which never dreamed of distances that weren't explained by the size of my boot.