Do any calculators work for understanding how drunk you might be?

I occasionally try to use the website drinkfox to try and figure out if i should be drunk yet. However, I don’t trust it in the slightest, because according to it, ” Nausea will likely take effect at this point. The drinker will likely have the appearance of a sloppy drunk. “, and i don’t feel drunk at all (which I’m not happy about, but I’m not allowed more to drink and i dont want to push my luck by taking more anyway)- so are any calculators like that actually somewhat accurate to how you feel?