How many calories are in 1 lb of prime rib?
                                
                                
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                                    4 min read                                
                            
                                A 3-ounce portion of lean prime rib contains about 205 calories, but that number can skyrocket for a full pound depending on fat content and preparation. A full pound of prime rib can contain anywhere from 950 to over 1,800 calories, making it important to understand the factors at play when considering how many calories are in 1 lb of prime rib.