How many 500 ml should you drink a day? Calculating your daily water intake
                                
                                
                                •
                                
                                
                        
                                    
                                    4 min read                                
                            
                                According to the National Academies of Sciences, Engineering, and Medicine, adequate daily fluid intake is around 3.7 liters for men and 2.7 liters for women. The exact number of 500 ml bottles you should drink a day depends on individual factors like body weight, physical activity, and environment.