Party Drinks and Bar Quantities: How Many Drinks Per Person

How Many Drinks Per Person at a Party

Plan on about 1 drink per guest per hour: 3 drinks per guest for a 3-hour party with soda and water, and 4 drinks per adult over a 4-hour party with beer and wine. Then add 1.5 lbs of ice per guest. Those are the rates behind the drink calculators and the drink mix planners, and every table on this page is built from them.

The drink count is the easy half. The hard half is converting drinks into things you can buy, because a bottle of wine is 5 drinks, a bottle of vodka is 17, and a can of beer is one. Every worked example below does the conversion, so the column you read is a shopping list, not a serving count.

How to Use These Numbers

Decide what kind of bar you are running first: soft drinks only, beer and wine with soft drinks, or a cocktail bar. Each has its own drinks-per-guest total and its own split, and they are the three mixes the drink mix planners use. Multiply the total by your adult headcount, apply the split, then convert each share to bottles or cans using the yield column in the per-person table. The worked examples do that for 10, 25, 50, and 100 guests, so if your number is close to one of those, read the column and go shopping.

One adjustment matters more than any other. If you run each drink through its own calculator instead of using a mix, mark it as one of several drinks on offer. That setting cuts each drink by 40 percent, because the guest who drinks beer is not also drinking the wine. Use the mix or the setting, not both.

Party Drinks Per Person Table

These are the per-guest figures the FeedMyGuests calculators use for every drink in the data set, with the purchase unit and how many servings it holds. The 50-guest column shows what you buy when that drink is the only one on offer; use the calculator links for any other headcount.

The "on its own" column is deliberately generous. Beer at 3 12oz cans/bottles per guest assumes every guest drinks beer all evening. Nobody runs a party that way, which is why the mixes below split one sensible total across several drinks instead of stacking each drink's full figure.

Worked Examples: Drinks for 10, 25, 50, and 100 Guests

Beer, Wine, and Soft Drinks Bar

This is the mix for backyard parties, showers, receptions, and any mixed adult crowd: 4 drinks per adult over 4 hours, split 40 percent beer, 20 percent wine, 20 percent soft drinks, 20 percent water. Wine is shown as glasses and bottles because you buy it by the bottle. Ice and cups are added on top.

Take the 50-guest column. 80 12oz cans/bottles of beer and 40 glasses (8 bottles) of wine cover the adult drinks, 40 12oz cans of soda and 40 16oz bottles of water cover everyone else and the second half of the evening, and 75 lbs of ice keeps it all cold. The whole bar runs $201 to $460 at retail, which is a fraction of what the food costs for the same crowd.

Cocktail Bar With Wine and Water

For cocktail hours, receptions, and evening parties where a signature drink replaces beer: 3.5 drinks per adult over 4 hours, split 30 percent signature cocktails, 35 percent wine, 35 percent water. The signature cocktail is priced per finished drink; if you are mixing it yourself, a 750 ml bottle of spirits makes 17 drinks.

If One Drink Carries the Party

Sometimes the bar is one thing: a keg-and-cans cookout, a wine-only dinner, a coffee urn at a morning event. This table runs each drink alone through its calculator, with no reduction for other drinks, so it is the ceiling for that drink. Every row still needs water alongside it.

What People Get Wrong About Party Drinks

Buying drinks by the drink instead of by the bottle

"80 glasses of wine" is not a shopping list. A bottle pours 5 glasses, champagne 6, a 750 ml of spirits 17 drinks at a standard pour. Fix: convert every share to units before you shop. The worked examples above already show both numbers.

Adding up each drink's full figure

Beer at 3 12oz cans/bottles per guest plus wine at 2 glasses plus soda at 2 12oz cans comes to a number nobody drinks. Fix: use a mix, which splits one honest total (4 per adult for 4 hours) across the drinks, or mark each drink as one of several in its calculator to apply the 40 percent cut.

Forgetting ice

Ice runs out before anything else, and it runs out first at outdoor parties. Fix: 1.5 lbs per guest, 75 lbs for 50 people, bought the same day and kept in a cooler. Buy a third more for a hot day or a bar that pours cocktails over ice.

Hiding the water

Water behind the bartender is water nobody drinks, and guests who wanted it take a soda instead, which throws the whole split off. Fix: bottled water on the table at every station, at the 20 percent share the mixed bar allows, more on a warm day.

Planning a flat rate per hour

Guests drink their first two drinks in the first hour and slow down after that. A four-hour party is not four evenly paced hours. Fix: keep the 4 per adult total but stock the bar fully before guests arrive, and expect the ice and the beer to take their biggest hit in the first 60 minutes. If the room goes quiet once that first rush passes, a drinking game spinner gets the second half of the evening moving again without asking the bar to pour any faster.

No reserve case

The one time you run short is the one time the store is closed. Fix: a reserve case of beer and a case of water kept out of sight. If they come home unopened, they keep.

Plan It With the Calculators

Run your own headcount with these tools. Each one uses the same per-person figures as the tables on this page.

• Drink mix planners: the three bar types above at 20, 50, and 100 guests.
• All drink calculators, and beer, wine, champagne, vodka, margaritas, soda, water, and ice on their own.
• Drinks and appetizers calculator for a cocktail hour, with the appetizer calculator for the food side.
• The wedding food guide for a reception bar and champagne toast, and the taco bar guide for a margarita table.
• The catering food calculator guide for the food, and the full list of calculators.