| Size Weight of a dozen eggs Jumbo 30 ounces Extra Large 27 ounces Large 24 ounces Medium 21 ounces Small 18 ounces Peewee 15 ounces |
| Eggs sizes |
| U.S. sizes are defined by the weight of a dozen eggs. Not individual eggs. An egg in a carton of Extra Large eggs need not weigh at least 27/12 ounces, but the dozen must weigh at least 27 ounces. |
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