How do you think the rest of us feel? Sure you get a feel for roughly how much a dollar is but I also don't have a currency converter in my head, just in my bro

How do you think the rest of us feel? Sure you get a feel for roughly how much a dollar is but I also don't have a currency converter in my head, just in my browser. Maybe an extension that converted things that look like currency into a grokkable currency of your choice?