Light, Medium, Heavy Flow?

I just started using the menstrual cup. I was wondering how to tell, with the menstrual cup, what would be considered, heavy flow, medium flow, and light flow? However you want to measure it by, i.e. this much blood in cup = # tampons/pads, or # mL = light/heavy/medium, # cup changes when this full, etc. Haha, since switching to the cup, it's easy to forget that I'm on my period 😅 Just wondering how other people are able to tell if their flow is heavy or light.

Responses are appreciated! Thanks!