The fewer shrimps per pound, the larger they are. However, mantis shrimp harvested from the southeast tends to be colossal only. This tale always has a happy ending, but keep in mind when it comes to count, the size Shrimp are normally graded by size and count, meaning the average number of shrimp to make 1 pound. This shrimp sizing chart is for buying frozen or fresh Shrimp in the shell without the head on. Contact us for reservations and Offer. In some areas, jumbo shrimp are referred to as prawns, but the prawn is actually a completely different species in the lobster family. U15 means there are less than 15 shrimps per pound. And when they’re cooked, they’ll transform into 21/25s. Remove the shell and they become 16/20s. So, back to those 13/15 shrimp. Buy Shrimp By Count, Not Size. When you see 41/50 on the packaging of frozen shrimp, that means there are 41 to 50 shrimps per pound. Meanwhile, jumbo shrimp are designated as “21/25, ” which means you’re getting between 21-25 shrimp per pound. Also, each time a shrimp is processed, it becomes one size smaller. When you buy shrimp, whether fresh or frozen, the size designation isn’t standard and its best to use count per pound. October 10, 2020. Standard sizes. The higher the number, the smaller the shrimp. Here’s the catch- in terms of marketing, these sizes aren’t standardized. All Shrimp are sold by sizes, whether they are sold by the actual count or by a name such as jumbo or extra large. One grocery store’s “extra large” shrimp might be another store’s jumbo shrimp. Shrimp Count Sizes . shrimp sizes and weights; Exercising in your 40s and beyond June 18, 2019. It's good to know what the marketable name is and the count of shrimp per pound the goes with it. shrimp are half the size of the 13/15 shrimp.