A typical 12 ounce bottle of beer is around 5% alcohol by volume. Crown Royal is 40% alcohol by volume. Knowing these two numbers we can calculate the amount of alcohol in each for comparison.
0.05 * 12 ounces = 0.6 ounces of alcohol in 1 beer
0.40 * 1.5 ounces = 0.6 ounces in a single shot of Crown Royal.
So a typical 12 ounces of beer, 1 standard can or bottle, is equivalent to 1 shot of Crown Royal.
The standard size shot glass is 1.5 ounces. Other shot glass sizes are called "short shot" glasses or "pony shots" both of which are 1 ounce.
Alcoholism experts define a "standard drink" as 12 ounces of beer, 1.5 ounces of 72-proof distilled spirits, or 5 ounces of wine, all of which contain approximately .54 ounces of alcohol.
Proof means the alcohol content of distilled liquors. It is the percentage of alcohol multiplied by two. For example:
50% alcohol = 100-proof
100% alcohol = 200-proof
Since one drink is defined as containing one-half of an ounce of pure ethyl alcohol, each of the following is considered to be one drink:
10 ounces to 12 ounces of beer at 4% to 5% alcohol content
8 ounces to 12 ounces of wine cooler at 4% to 5% alcohol content
4 ounces to 5 ounces of table wine at 9% to 12% alcohol content
2.5 ounces of fortified wine at 20% alcohol content
1.25 ounces of 80 proof distilled spirits at 40% alcohol content
1 ounce of 100 proof distilled spirits at 50% alcohol content
If you're going to drink, these 5 tips may help you avoid overdoing it shared by WebMD.