No, it's different. distance / volume vs volume / distance are just inverses. Weight vs Volume are completely different measures and can only be compared by knowing the specific properties of the contents. Some recipe books have conversion tables for using depending on _what_ you're measuring.
My point is that changing the units doesn't have to change how you measure it. You can measure in kg or L just as easily, it's literally a number conversion. Whether or not you change how you measure it is a much more localised form of standardisation.
