Enter your guest count and how long the event runs to see how many bottles to buy.
A standard 750ml wine bottle holds about 25 ounces, which pours into roughly five 5-ounce glasses. Event planners commonly estimate one glass per guest per hour of service. Multiplying guests × hours gives total glasses, which converts to bottles at 5 glasses each.
Source: Based on the standard catering estimate of one 5-ounce glass of wine per guest per hour, with 5 glasses per 750ml bottle.
A standard 750ml bottle holds about 25 ounces, which pours into roughly five 5-ounce glasses at a typical serving size.
A common approach is roughly half red, half white, adjusted for the season and menu — more white for a summer or seafood-heavy event, more red for a winter or heavier-menu event.
No — this calculator assumes all guests are drinking wine for the full event length. If only some guests drink wine, reduce the guest count by that share, or check the Wedding Alcohol Calculator for a mixed-bar breakdown.
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