How many calories in 1.5 oz of 100 proof bourbon? The complete guide
                                
                                
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                                    4 min read                                
                            
                                A standard 1.5 oz pour of 100 proof bourbon contains approximately 124 calories, with all energy derived directly from the alcohol content. This definitive guide will answer how many calories in 1.5 oz of 100 proof bourbon and explain why proof matters for your caloric intake.