How many calories are in an extra large slurpee from 7-11?
                                
                                
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                                    3 min read                                
                            
                                According to nutrition data, a single 44-ounce extra large Slurpee from 7-Eleven contains approximately 660 calories. This large frozen beverage is a refreshing treat for many, but its high-calorie count, which is almost entirely from sugar, is a significant nutritional consideration for anyone watching their intake.