Understanding How Many Calories Are in an Average Slice of Pizzeria Pizza
                                
                                
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                                    4 min read                                
                            
                                An average slice of plain cheese pizza on a regular crust from a pizzeria contains approximately 285 calories, based on nutrition data for a 14-inch pie. However, this number is just a starting point, as the total calorie count is significantly influenced by a variety of factors, including crust thickness, toppings, and portion size.