According to Google 3kg is 6,61387 pounds.
As a rule of thumbs if you multiply kilograms by 2 you get a rough equivalent in pounds ;-)
I can manage inches, feet and pounds quite OK but Fahrenheit are a bitch though.
> ... but Fahrenheit are a bitch though.
Ha, ha, couldn't agree more... :)
Anyway, I looked it up just now, looks like you substract 32 from Fahrenheit and then divide by 1.8 to get Celcius: http://www.wikihow.com/Convert-Between-Fahrenheit,-Celsius,-...
I know you're half joking, but if you really don't have a feeling (or actual understanding) of the units of the metric system you should spend some time acquiring that knowledge. There are reasons that 95% of the world and the entire scientific community uses it.
And it's cool to hear you say that last bit because I feel the same way. I really need to sit down to work through through a complicated problems that requires focus. Emails and phone calls are standing and furrowed brow activities are sitting.