Sadly, teaspoons to tablespoons has a jump of 3x, but other than that it's mostly binary with a few skips (e.g. there's not a real half gallon unit AFAIK, it's just "a half gallon", same for 2 fl oz). For some reason a barrel is 31.5 gallons instead of 32, with a hogshead being twice that at 63, but those are pretty rarely used.
