How much alcohol is in 1.5 ounces of rum? Understanding a Standard Drink
                                
                                
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                                    5 min read                                
                            
                                According to the National Institute on Alcohol Abuse and Alcoholism (NIAAA), one standard drink in the U.S. contains approximately 0.6 ounces of pure alcohol. For distilled spirits like rum, this equates to 1.5 fluid ounces of 80-proof liquor, making the measurement of **how much alcohol is in 1.5 ounces of rum** a key reference point for responsible consumption.