How Much Does A Cup Of Coffee Weigh. For instance, if a bag contains 25 grams of coffee beans, you would multiply 25 by 1 to get the total number of cups needed. Once you have the number of pounds in a gallon, you can then use the equation:
This also gives us an average coffee bean weight of about 145 milligrams or.145 grams per bean. This is called the “cup volume”. But you don’t use a full cup of beans in a cup of coffee.



