How many calories are in a lemon drink? The definitive guide
                                
                                
                                •
                                
                                
                        
                                    
                                    5 min read                                
                            
                                A glass of water with the juice of half a lemon contains only about 6 to 11 calories, making it an excellent low-calorie beverage choice. The total calorie count for any lemon drink, however, depends heavily on whether additional ingredients like sugar or honey are added, transforming it from a virtually calorie-free refreshment into a sugary concoction.