What is 1 cup of coffee in mg?
                                
                                
                                •
                                
                                
                        
                                    
                                    4 min read                                
                            
                                According to the USDA, an average 8-ounce cup of brewed coffee contains approximately 96 milligrams of caffeine. What is 1 cup of coffee in mg, however, is a figure that can vary dramatically depending on several key factors, from the bean variety to the specific brewing method used.