How Much Alcohol Do You Need for a Wedding?
Buying drinks for a wedding sounds simple until you start asking the practical questions: How many bottles of wine? How much beer? How much liquor? What about guests who do not drink?
The goal is not to predict every drink perfectly. It is to build a sensible estimate based on your guest count, reception length, and the kind of bar you plan to serve.
Start With Three Numbers
The most useful starting information is:
- total number of guests
- estimated percentage who will drink alcohol
- reception duration
Imagine a wedding with 120 guests, where about 75% are expected to drink alcohol, and the reception lasts five hours. That gives you roughly 90 drinking guests.
From there, you can estimate the total number of drinks and decide how to divide them between beer, wine, and spirits.
A Practical Starting Estimate
A common planning assumption is around one drink per drinking guest per hour. It is only a starting point, because real consumption varies. Some guests drink more, some have one drink, and some do not drink at all.
That is why the free Wedding Beverage Calculator is useful: you can enter your own guest count, reception duration, and drinking percentage instead of using a generic one-size-fits-all number.
Choose the Type of Bar You Actually Want
Your final quantities depend heavily on what you plan to serve.
Balanced bar
A mix of beer, wine, and spirits works well when you do not know your guests’ preferences clearly.
Beer and wine only
This is simpler to buy, serve, and budget. It also reduces the number of mixers and spirit bottles you need.
Wine-forward
Useful for dinner-focused receptions where wine is likely to be the main alcoholic drink.
Cocktail-forward
This requires more spirits, mixers, garnishes, ice, and planning around specific recipes.
How Much Wine Do You Need?
A standard wine bottle generally provides about five servings, depending on pour size.
If you expect 100 glasses of wine:
100 รท 5 = approximately 20 bottles
Then add a modest buffer based on your event and whether unopened bottles can be returned.
How Much Beer Do You Need?
Beer is easier to count because it is usually purchased in individual bottles or cans.
If you estimate 180 beer servings, plan for approximately 180 bottles or cans before adding a safety margin.
Consider whether your guests prefer beer, cider, hard seltzer, or a mix. A beer-heavy crowd may need a larger share of the total drink estimate.
How Much Liquor Do You Need?
Spirits are more difficult because the number of servings per bottle depends on the bottle size and pour size, and cocktails also require mixers.
Instead of buying equal amounts of vodka, gin, rum, whiskey, and tequila, decide which cocktails or simple mixed drinks you will actually serve. That keeps the bar easier to manage and reduces leftovers.
Also account for mixers such as tonic, soda, cola, ginger beer, juice, and sparkling water.
What About Champagne or Sparkling Wine?
If sparkling wine is served only for a toast, calculate it separately from the main bar. Not every guest will necessarily drink a full serving.
If sparkling wine will be available throughout the reception, treat it more like another wine category and include it in the main drink mix.
Do Not Forget Non-Alcoholic Drinks
A well-planned wedding bar is not only about alcohol. Make sure there are appealing options for designated drivers, children, pregnant guests, guests who do not drink, and anyone taking a break from alcohol.
- still and sparkling water
- soft drinks
- juice
- iced tea or lemonade
- mocktails
- alcohol-free beer or wine
Water should be easy to access throughout the reception, especially at outdoor weddings, warm-weather events, or receptions with a lot of dancing.
How Much Alcohol for 100 Wedding Guests?
There is no single correct number for 100 guests because the result changes with the percentage who drink, the reception length, and your bar style.
For example, if 75 of 100 guests drink and the reception lasts five hours, a rough starting point using one drink per drinking guest per hour would be 375 alcoholic servings. You would then divide that total between beer, wine, and spirits according to your planned mix.
Use this as a planning estimate, not a guarantee. Guest behavior varies, and venue or caterer packages may already cover part of the calculation.
Ways to Avoid Buying Too Much
- Ask whether unopened bottles can be returned.
- Check whether your venue charges corkage.
- Confirm what your caterer or bar package already includes.
- Limit the number of signature cocktails.
- Estimate the percentage of guests who actually drink.
- Buy a modest buffer instead of dramatically over-ordering.
Frequently Asked Questions
How many drinks per person should I plan for?
One drink per drinking guest per hour is a common starting estimate, but it should be adjusted for your guests, event length, food service, and bar style.
How many glasses are in a bottle of wine?
A standard wine bottle provides roughly five servings, depending on the size of each pour.
Should I count every guest as a drinker?
No. Estimate the percentage of guests likely to drink alcohol, and plan non-alcoholic options for everyone else.
Estimate Before You Buy
Use the free Wedding Beverage Calculator to estimate beer, wine, spirits, mixers, water, and zero-proof drinks. Then use the Wedding Budget Calculator to see how the bar fits into your total spending plan.
