How Many Calories Are in a Tuna Fish Sandwich Made with Mayonnaise?
                                
                                
                                •
                                
                                
                        
                                    
                                    3 min read                                
                            
                                According to the USDA, a standard tuna salad made with mayonnaise can contain up to 383 calories per cup, before being placed on bread. The total number of calories in a tuna fish sandwich made with mayonnaise can vary significantly, ranging from approximately 300 to over 500, depending heavily on the type of bread and the amount of mayonnaise used.