A 5-ounce glass of Pinot Noir contains approximately 120–130 calories. The exact count depends on the wine's residual sugar content and alcohol by volume (ABV), which typically ranges from 12% to 14.5% for Pinot Noir. Since alcohol contains 7 calories per gram and carbohydrates contain 4 calories per gram, drier wines with lower residual sugar tend toward the lower end of this range, while wines with slightly higher sugar content or higher alcohol levels may reach the upper end. A standard 5-ounce serving is the official USDA serving size for wine. For precise calorie information, checking the specific wine's label is most reliable, as producers increasingly list this data. Keep in mind that serving sizes vary—a larger pour or smaller glass would adjust the calorie count proportionally.