SmartServe Ontario Practice Exam

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How do you calculate a standard drink for any percentage of alcohol?

100 / alcohol percentage = amount in oz
alcohol percentage / 100 = amount in oz
60 / alcohol percentage = amount in oz
alcohol percentage / 60 = amount in oz

The correct answer is: 60 / alcohol percentage = amount in oz

To calculate a standard drink based on the percentage of alcohol, the formula is to divide 60 by the alcohol percentage. This calculation helps determine the volume in ounces of liquid that qualifies as a standard drink, which typically contains about 0.6 ounces of pure alcohol. The reasoning behind using the number 60 is that it accounts for the proportion of alcohol in a typical beverage and ensures that the resulting volume corresponds to the standard measurement for alcohol serving sizes in the United States and Canada. Thus, applying the formula 60 divided by the alcohol percentage gives you the volume in ounces that constitutes one standard drink, reflecting the standard definition used in serving practices.