No, no, no, no, no! You missed a (few) bits out!
one = onea couple = twoa few = three to fivesome = six to eighta bunch = nine to fifteenloads = fifteen to twenty-threea ton = twenty-four to thirty-sevena boatload/ a wagonload = thirty- eight to infinity and beyond.
These are, of course, Imperial measurements. I am not familiar with the metric equivalents.