Well, do you know what is calorie? It is basically a unit for measuring heat energy. It is also use for measuring energy that is contained in a food item. Your body needs calories for breathing, pumping blood, walking, sitting, thinking, etc. Normally your body requires 2500 calories (male)/2000 calories (female). It can vary depending on your activities.
So, how many calories in a bottle of wine?
A glass of wine contains 100 – 300 calories depending on the grape, fermented duration, sugar amount and alcohol. The higher the alcohol level is the higher calories a wine contains. Sweet wines have fewer calories than dry wines which have around 11% to 15% alcohol.
These comparison charts from wine folly give you clear idea about wine calories.
Calories in White Wines
According to USDA, a bottle of white wine contains 605 calories (approx). Sauvignon Blanc contains 595 calories per bottle, Riesling 590 calories, and Chardonnay 615 calories per bottle.
Calories in Red Wines
According to USDA, a bottle of red wine contains 625 calories (approx). Wines like Merlot and Syrah, Cabernet Sauvignon bottle contains 610 calories. Sweet wines like Pinot Noir bottle contain fewer calories — 605 calories per bottle.