Hi, I think in metric units, so almost everything is some form of a power of 10, like a kilogram is a 1000 grams, etc.
Sometimes I will think of an hour and half as 150 minutes before remembering that it is 90 minutes.
Does something similar happen to imperial units users? Because as far as I understand you don’t have obvious patterns that would cause you to make these mistakes, right?
Living in the US, I know what mph, inches, feet, yards and pounds all mean. Anything else I’ll end up looking up, and yes, I’ve lived here my whole life. I don’t make any mistakes because I always end up checking how my cups are in a quart or whatever.