Looks like empty calories, at least according to the U.S. National Library of Medicine refers to 'calories' that contain no beneficial nutrients such as vitamins or minerals. Here's what they had to say about alcohol specifically.
Alcohol comes from fermenting starches and sugars. Alcohol has about 7 calories per gram. These are considered "empty" calories.
A 12-ounce beer contains about 150 calories. Sugary, carbonated beverages and fruit juices contribute additional calories when mixed with alcohol in a cocktail.
Also, if you're looking to discover a few more nutritional/health facts about alcohol, you may want to try out this quiz ...
courtesy of the National Heart Lung and Blood Institute.
You may also want to try this calorie calculator courtesy of the Mayo Clinic ... http://www.mayoclinic.com/health/calorie-calculator/NU00598. The results are based on age, gender, height, weight and physical activity.
Finally, you can find out how which foods to expend those calories on by checking out the food pyramid and reading the accompanying article from Harvard's School of Public Health.
Does that help answer your questions?