When it comes to calories, the brand of vodka you drink matters much less than the alcohol content. Grey Goose, like the vast majority of vodkas, is 80 proof, meaning it contains 40 percent alcohol. The few brands that are 94 or 100 proof have more calories.
Each ounce of 80-proof vodka contains about 64 calories, according to Columbia Health. Because shot sizes may range between 1 and 1.5 ounces, a standard pour may contain up to 96 calories. Vodka has fewer calories per serving than beer, which contains about 150 calories per 12 ounces, or about 105 calories per 12 ounces for light versions. At 77 calories per 4-ounce glass, wine is comparable to vodka in terms of calorie count.