Food & Cooking⏱ 5 min read
How Much Wine (and Alcohol) Do You Need Per Person for a Party?
Hosting a dinner party or event and not sure how many bottles to buy? Here's the formula for every type of event, drink type, and guest profile — plus how to avoid running out.
Running out of wine at a dinner party is a social disaster; buying 40 bottles for 12 people is an expensive one. The right amount lies between these extremes — and a simple formula gets you there.
The Rule of Thumb Starting Point
Wine per person:
Dinner party (3+ hrs): 3–4 glasses per person
Cocktail / drinks party (2 hrs): 2–3 glasses per person
Wedding reception (all evening): 5–7 glasses per person
Standard bottle = 750ml = 5 glasses (at 150ml each)
Or 6 glasses at 125ml (restaurant measure)
Dinner party, 8 guests, 3 hrs:
8 × 3.5 glasses = 28 glasses ÷ 5 = 5.6 → buy 6 bottles
The More Accurate Formula
Bottles needed = (Guests × Glasses per hour × Event hours) ÷ 5
Wedding 4-hr reception, 60 guests (mixed drinkers):
= (60 × 1.2 × 4) ÷ 5 = 288 ÷ 5 = 57.6 → 60 bottles
Adjust for non-drinkers (typically 20–30% at mixed events):
60 guests × 75% drinkers = 45 effective drinkers
= (45 × 1.5 × 4) ÷ 5 = 270 ÷ 5 = 54 bottles
By Drink Type
DrinkServes per BottlePer Person (3-hr dinner)
Still wine (750ml)5–6 glasses0.5–0.75 bottles
Prosecco / Champagne6–7 flutes0.4–0.5 bottles
Beer / lager (330ml can)1 serve per can3–4 cans
Spirits (700ml)~23 singles~3 measures
Soft drinks (1.5L bottle)10 glasses (150ml)2–3 glasses
Wine Ratio: Red vs White vs Rosé
A rough starting ratio for a mixed dinner party:
Summer / warm weather: 1 red : 2 white : 1 rosé
Winter / colder: 2 red : 1 white : 0 rosé
General mixed: 1 red : 1 white
When in doubt: buy slightly more white than red.
Red stays drinkable; open white chills quickly if you run short.
Fizz for Toasts
Toast only: 1 glass per person = 1 bottle per 6 people
Welcome drink + toast: 2 glasses per person
100-person wedding with welcome fizz and toast:
= 2 glasses × 100 people = 200 glasses ÷ 6 = 33–34 bottles
The One Rule That Prevents Disasters
Calculate your estimate, then add 20%. The cost of the buffer is trivial compared to running out. If buying from a supermarket or off-licence, check their returns policy — many accept returns of sealed, undamaged bottles, so the buffer costs nothing if you don't use it.
Always have more soft drinks than you think you'll need — designated drivers, pregnant guests, and non-drinkers are often underestimated, and a well-stocked soft drink selection is a genuine hospitality mark.