Find out how many bottles of wine to buy for your party based on guest count and event length.
A standard 750ml wine bottle pours about 5 standard 5-ounce glasses. This calculator multiplies your guest count by event length and a typical drinking rate to estimate total bottles needed.
Total Glasses = Guests × Hours × Glasses per Guest per Hour
Bottles Needed = Total Glasses ÷ 5
30 guests over 3 hours at 1 glass/hour needs 90 glasses, which rounds up to 18 bottles of wine.
Please drink responsibly and never serve alcohol to minors.
A standard 750ml bottle typically yields about 5 standard 5oz servings.
Servings per guest multiplied by guest count, divided by servings per bottle.
Pour sizes are generally similar, though tasting events may use smaller pours.