Gram, unless you have a ruler the size of a truck, then it might be a kilogram :)
ruler means king or who rules....his weight is .............!
The mass or weight or a ruler would best be measured in grams.
Gram
one gram roughly
the kilogram is bigger than a gram
1 gram is 1/1000 of a kilogram.
One gram is one thousandth of a kilogram.
a gram=100kg a kilogram=1000g
kilogram
1 kilogram = 1000 grams 1 gram = 0.001 kilogram
A gram weighs less than a kilogram.