INSIDER know-how: Counting the calories

Alcohol weighs in at a hefty seven calories per gram, which is only two calories fewer than pure fat! Wine can cause weight gain because it is a concentrated source of calories. Generally, cooler-climate whites will have lower alcohol levels and therefore fewer calories per glass. To calculate the number of grams of alcohol in a bottle or glass of wine, use this formula: volume (ml) x alcohol (ABV %) x 8 divided by 1,000. Multiplying this answer by seven will give you the approximate calorie content. A standard bottle of wine at 750ml with an abv of 13.5% would have approximately 567 calories.