Wine is a sort of alcohol made by fermenting grapes. However, the standard serving size is generally smaller -- usually 2 to 3 ounces -- so figure about 100 to 150 calories every glass. This is an important reading, and it has to do with the dry extract content of your wine. https://writeablog.net/riflepastor1/storing-wine-the-odd-questions-you-always-wondered-about