The number of calories in a glass of red wine depends on how much is poured. You can figure approximately 25 calories per ounce of red wine. A typical restaurant pour of red wine is 5 ounces, which matches the U.S. standard drink size for health and safety risks. But 4 ounces of red wine is considered a standard serving size in many weight loss diets. That is a mere 1/2 cup of wine, measured and then poured.
You may be surprised at what a 4-ounce pour looks like in a large-rimmed red wine glass, and you might be pouring far more at home.
Calories by the Glass of Red Wine
Your 5-ounce (147 grams) glass of red wine at a typical restaurant tops out at 125 calories. The standard "diet-friendly" glass of red wine only weighs in at 100 calories per 4 ounces, which isn't bad. To keep the calorie count accurate, you must measure. Fill that wine glass to the rim and you may have double the calories.
Calories by the Bottle of Red Wine
There are 25.4 ounces (750 milliliters) in the average bottle of wine. Since 1 ounce of dry red wine or white wine has about 25 calories, one full bottle of wine contains about 635 calories.
Calculating the Calories
While there is some variability among varietals and wine styles, there is little caloric difference between red wine and white wine. Wines with a higher alcohol content have more calories than wines with a lower alcohol content.
That’s because 1 gram of alcohol has 7 calories compared to 1 gram of carbohydrate (sugar), which has 4 calories.
The amount of alcohol in wine and other alcoholic beverages is noted as the alcohol by volume (ABV), which is a percentage.
The basic formula used to calculate the calories in wine is as follows:
- Percent of Alcohol X Ounces X 1.6 = Calorie Content
For example, a 6-ounce glass of wine that has an ABV of 15 percent has about 144 calories compared to a 6-ounce glass of wine that has an ABV of 12 percent, which has about 115 calories.
Will Wine Make You Fat?
Wine has no fat, but it can be fattening as it contributes to your daily calorie intake while providing little in the way of nutrition. The calories in wine come from both sugar and alcohol.
Limiting alcohol to moderate consumption (one drink per day or less) is important for safety and health, and the same rule applies for caloric reasons. Wine has calories, just like anything else you love to eat or drink, and those calories can add up quickly when you’re not paying attention to them. Liquid calories tend to be easier to ignore than food calories because they don’t necessarily feel the same way going down. If you aren’t careful, you can consume as many calories drinking wine as you would eating a giant slice of chocolate cake.
To many, a life without wine is an unpleasant thought. By making the right choices, you can keep the calories down and enjoy a small glass of wine as fits into your diet plan.