This is complicated a little bit because most wine glasses will hold considerably more liquid than is customary to actually serve (you don't fill the glass completely; this allows the aroma of the wine to collect in the bowl above the liquid itself). A standard "pour" of wine is around 5-6 ounces; this means a gallon is somewhere between 21 and 26 "glasses" depending on how generous you're being with the serving size.
A typical serving size of wine is 6 oz and there are 128 oz in a gallon so you can get about 21 or 22 glasses.
You can get about 6 glasses out of 1 liter
That is approximately 44, 4ounce glasses of wine
How many glasses to a bottle of sparkling wine?
Five glasses.
8 16oz glasses
There are five servings (glasses) of wine in a 750 ml bottle of wine.
About 10, five ounce servings
12.8 glasses.
There are 128 ounces in a gallon, so there would be 16 (128/8) 8 oz glasses in 1 gallon.
24 4oz glasses
THEY SAY ABOUT 10 GLASSES, DEPENDING ON THE SIZE OF THE GLASS AND THE POUR OF COURSE.