You cant go by that mate, you have to factor in how dense or fluffy the buds are. When I was growing indoors an Oz of my stuff would only fill up half the jar, if that even. Cause they were very dense and heavy nugs. My friend got a Oz from a diff friend and he had the same jars as me and it filled the whole jar up. Its all in how dense or fluffy the buds are. Thats gonna determine how much you can fill in the jars.
If you wrre wondering because you wanted to know what jars to get, I started off with bigger jars 2L, then went down to smaller ones seem to work with them better and as you take some weed out them theres not much or a gap between the lid and the buds. The more air between them the more moisture will be pulled out by the air thats inside the jar.