Question

A jar of butter butter estimated about 400 grams or 400 kilogram4s

Answer 1

I would say its 400 grams because one kilogram is about 1,000 grams. And one gram is about the same weight of a paperclip, Unless you have a really big jar of peanut butter, i say 400 grams.

Answer 2

A jar would be about 400 grams