A balance graduated down to 0,1 g.
Pound weight.
Grams
Millimeter
Milligrams, usually.
pounds
Mg or g
Newton.
your-mum-tonnnes
the best answer from me you can get is i would have to say measure it by pounds
You use a compass rose, in case you get lost. A compass rose, gives you all the cardinal directions.
Most weight machines that are made for beginners are fairly easy to use , but I would talk with someone who knows more about the particluar weight machine you have to find out more information about it .
You can find charts online that will tell you for your specific height what a good weight would be. You can also use your BMI to tell you if your a healthy weight already or not.