How many 8 oz glasses make a half gallon?
                                
                                
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                                    3 min read                                
                            
                                According to the US Customary system, a standard gallon contains 128 fluid ounces. So, how many 8 oz glasses make a half gallon? The answer is a straightforward eight glasses, as a half gallon equals 64 fluid ounces. This quick conversion is useful for daily hydration goals, cooking, and meal prepping.