How Many Glasses Are in a Bottle of Champagne?

Planning Champagne quantities for an event comes down to a straightforward calculation, once you know the standard numbers.

The Standard Answer

A standard 750ml bottle of Champagne typically yields about 5-6 glasses, based on a standard pour of roughly 4-5 oz per glass (about 125-150ml) — enough to fill a flute without overfilling it to the point of losing the bubbles' visual presentation and aroma-concentrating effect.

Why Pour Size Varies

A more generous pour (closer to 5-6 oz) will yield fewer glasses per bottle, while a more conservative pour (3-4 oz), more common at a large event where you're serving many guests, will stretch further, closer to 7-8 glasses per bottle.

Planning for a Toast vs. Sustained Drinking

For a single celebratory toast, where guests take one modest pour, you can plan for closer to 8 glasses per bottle. For an event where guests will be drinking Champagne throughout (rather than just for one toast), plan around the more standard 5-6 glass estimate, and expect guests to have more than one glass over the course of the event.

Bottle Size Options for Larger Events

Beyond the standard 750ml bottle, Champagne is also commonly available in Magnum (1.5L, double the standard bottle, yielding roughly 10-12 glasses) — a practical option for larger events where fewer individual bottles need opening and pouring.

Quick Party-Planning Math

For a toast-only event: divide your guest count by roughly 8 to estimate bottles needed. For an event with sustained Champagne drinking throughout: divide your guest count by roughly 2-3 (assuming 2-3 glasses per guest over the course of the event) and then by 5-6 glasses per bottle to get your total bottle count.

A Practical Buffer

Whatever your calculation yields, it's generally wise to round up and buy slightly more than your exact estimate — running out of Champagne mid-celebration is a much bigger problem than having a bottle or two left over.