Thank you for the feedback. I'm not sure how to support this. I would probably have to call it "fluid_ounce" / "fl_oz" or "fl.oz." in order to distinguish it from the unit of mass.

Well, the way /usr/bin/units solves it is to allow "floz", "usfloz", "fluidounce", or "usfluidounce".

Having to learn that you can type "floz" is better than not being able to do it at all.

(You could also allow "fl oz", "fluid ounce", "fl ounce", etc. if you tweak your parser a little bit, but that's the deluxe version, and any functionality at all would be a big improvement.)

Thank you. I'll add one of those.

floz and fluidounce are now supported.

You could try to go the complicated route to disambiguate based on whether the other units present are liquid volume or mass.

It doesn't support "stones" (st?) either. I tried "20 st -> kg" (Game of Thrones uses stones as units of mass) but it didn't work.