Can of Stewed Tomatoes Have Calories? Exploring the Nutritional Facts
                                
                                
                                •
                                
                                
                        
                                    
                                    6 min read                                
                            
                                According to USDA data, a one-cup serving of plain, canned stewed tomatoes contains around 66 calories. This makes it clear that a can of stewed tomatoes have calories, though the total can vary significantly based on ingredients like added sugar or oil.