The next time you buy shrimp, take a closer look at the label and you’ll notice a set of numbers divided by a slash, like this: 21/25. This number, called the “count,” tells you the size of the shrimp. The count refers to the number of individual shrimp in 1 pound. So for instance, when you buy 1 pound of 21/25 count shrimp, you can expect to get 21 to 25 shrimp. The smaller the numbers, the bigger the shrimp. Sometimes on big shrimp you’ll see a count that looks like this: U/15 or U/10. This means there are “under 15” or “under 10” shrimp per pound.