How to Calculate Alcohol for a Wedding

Wondering how to calculate alcohol for a wedding? Start with the guests who may drink, the number of hours your bar will be open, and the kinds of drinks you plan to serve. Those three details turn a vague bottle estimate into a useful shopping list. For couples planning an Orange County wedding, BeeHive Mobile Bar’s dry-hire service means you purchase the alcohol; we provide a tailored shopping list and handle the bar experience.

Start with drinking guests, not the full guest list

Count the adults who may drink alcohol. Do not include children or guests who will choose alcohol-free drinks in the alcohol estimate, but make a separate plan for their beverages. If you do not yet have a final RSVP count, use a sensible estimate and update it before purchasing.

Next, note how long alcohol will actually be served. A five-hour wedding reception does not always mean five hours of open-bar service: check your venue timeline, dinner service, and last-call time.

Estimate the number of drinks to stock

BeeHive’s Wedding Alcohol Calculator starts with one planned drink per drinking guest for each bar hour, plus one extra per drinking guest. It also offers a one-per-hour setting if that better fits your event. These are purchasing assumptions, not recommendations for how much anyone should drink.

For example, imagine a wedding with 100 total guests, 70 guests who may drink alcohol, and four bar hours. Using the hours-plus-one setting, the planning total is 70 × (4 + 1) = 350 drinks. The other 30 guests still need appealing alcohol-free options.

Split those drinks across beer, wine, and cocktails

Think about what your guests are most likely to order. A sample mix of 30% beer, 30% wine, and 40% cocktails turns the 350-drink estimate into:

• 105 beers (30%)

• 105 glasses of wine (30%)

• 140 cocktails (40%)

This mix is only an example. A beer-and-wine reception, a cocktail-focused menu, or a guest list with many non-drinkers will call for different quantities. Ask your bartender to review the menu and guest preferences before you buy.

Convert servings into a practical shopping list

Use the serving sizes in BeeHive’s calculator: one beer per can or bottle, a 5 US fl oz wine pour, and a 1.5 US fl oz spirit pour per cocktail. A standard wine or liquor bottle holds 750 ml, about 25.4 US fl oz. Round the final number of bottles up to whole bottles.

Beverage	For this 350-drink example	Shopping estimate
Beer	105 individual servings	5 packs of 24 (120 beers total)
Wine	105 glasses × 5 fl oz	21 bottles of 750 ml
Spirits	140 cocktails × 1.5 fl oz	9 bottles of 750 ml in total

If your cocktails use a larger 2 fl oz spirit pour, the same 140 cocktails call for 12 750 ml bottles instead. A menu with several cocktails also needs the total spirit quantity divided among the actual recipes—for example, tequila, vodka, or whiskey. The estimate does not mean buying nine bottles of every spirit.

Account for what the alcohol total leaves out

A separate champagne toast is not included in the beer, wine, and cocktail mix above. Neither are mixers, water, other alcohol-free drinks, garnishes, or ice. Plan those items alongside the alcohol so the bar can serve the full menu. Check your venue’s rules on alcohol delivery, storage, and leftover bottles, too.

Before placing an order, confirm these details with your bartender:

• Final number of guests who may drink alcohol and the hours of bar service

• Beer, wine, and cocktail preferences, plus signature-drink recipes

• Whether champagne or sparkling wine is needed for a separate toast

• Alcohol-free choices and any venue purchasing or return rules

How BeeHive makes dry-hire planning easier

With BeeHive Mobile Bar, you purchase the alcohol using the tailored shopping list we provide. Our packages bring professional bartenders, a styled mobile bar, custom cocktails and menus, mixers, ice, garnishes, setup, service, and cleanup. That gives you control over the alcohol you buy while the bar details are handled for your event.

Try the Wedding Alcohol Calculator with your own guest count and service hours, then review the estimate with our team. If your reception includes a separate toast, our Champagne Toast Calculator can help you plan that part as well. When you are ready to shape the whole bar experience, request a custom quote.