How many bottles of Prosecco per guest?
The short answer
For one 125 mL toast, allow one 750 mL bottle for every six guests choosing Prosecco. At 150 mL each, allow one bottle per five guests. Count the people who want it, then calculate the pours. The guest list is not automatically the drinks order.
Answered by Michael Goldstein · Founder, Bella Principessa
Updated on
The full answer
For one 125 mL toast, allow one 750 mL bottle for every six guests choosing Prosecco. At 150 mL each, allow one bottle per five guests. Count the people who want it, then calculate the pours. The guest list is not automatically the drinks order.
The invitation said “a few friends.” The replies suggest everyone took that personally. Now you are counting glasses, moving things around in the refrigerator and wondering whether a bottle per person sounds generous or wildly unnecessary.
Start with what you are actually serving: one toast, a welcome drink, or one option among several. There is no useful universal bottle allowance for a guest. There is a useful calculation for a planned pour.
Calculate the number of bottles
Use this formula, then round up to a whole bottle:
Bottles = planned servings × pour size in mL ÷ bottle volume in mL.
For one 125 mL toast from standard 750 mL bottles:
| Guests choosing Prosecco | Wine required | Bottles |
|---|---|---|
| 12 | 1,500 mL | 2 |
| 24 | 3,000 mL | 4 |
| 30 | 3,750 mL | 5 |
| 50 | 6,250 mL | 9 |
The table assumes one serving each, with no allowance for spills. At 150 mL per serving, 24 guests would require 3,600 mL, so five bottles rather than four. The person filling the glasses needs the plan too. A generous first tray can quietly use the wine intended for the second.
Count choices, not just chairs
Offer an alcohol-free option and water. Some guests will choose those, and some may be drinking another wine. These calculations describe the amount needed for a service plan; they are not a recommended alcohol allowance per person.
If you choose Bella Principessa, check the bottle volume and decide whether you are serving white Brut, rosé Brut or both. Split the total according to the choices you expect, rather than doubling the entire order for a second style.
Keep bottles chilled and open them as needed. Our serving Prosecco guide covers the table, bottle-size guide explains the formats, and keeping Prosecco after opening covers leftovers.
Calculation basis
The examples use 750 mL standard wine bottles, as described in WSET's bottle-size guide. All serving and rounding calculations are shown here; they are not guest-consumption statistics.
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