Does dry wine has less calories than sweet wine?

No, dry wine typically has more calories than sweet wine. The sweetness of wine comes from residual sugar, which adds calories. Dry wines have less residual sugar than sweet wines, but they also tend to have higher alcohol content, which also adds calories. In general, a 5-ounce glass of dry red or white wine contains about 120-130 calories, while a 5-ounce glass of sweet wine contains about 150-170 calories.