how many ounces is one shot of alcohol?
In Canada, a shot generally refers to the province's definition of a standard drink under liquor licenses. Although sizes may vary, most provinces cite amounts similar to Ontario 's guidelines of 0.6 oz. or 17.05 mL of pure alcohol. Since a shot is typically a spirit with 40 percent alcohol, this makes the shot 1.5 oz. or 42.62 mL (though many establishments serve a standard drink of 1 oz). A double shot in North America may be either 2.5 or 3 fluid ounces.