Wedding Drink Calculator: How Much Alcohol to Buy

The bar is the line item couples get wrong in both directions at once: hundreds of dollars of unopened wine in the garage, and a champagne toast that ran out at table six. The math is not hard, but it stacks — drinking guests, crowd style, reception hours, bar type, the toast — and a wrong turn anywhere swings the total by dozens of bottles. This calculator does the stacking for you and hands you a shopping list with every assumption printed in plain numbers. It is the newest step in the Free Wedding Calculators chain, after the guest count.

Wedding Guest Count Calculator: Who Will Actually Come gives you the headcount to start from — enter the guests you expect, not the invitations you sent. The slider then removes the 15 to 20 percent who will not drink, because buying their drinks is the most common way to end up with leftovers.

Download the list when you are done. It converts everything into what the store actually sells — 24-can cases, 750 ml bottles, liters of mixers, pounds of ice — which is exactly what your venue, caterer, or the friend running the bar needs to quote and stock.

The two-drinks-then-one rule

Professional bartenders plan on two drinks per person in the first hour — people arrive thirsty and the cocktails are novel — then one drink per hour after that. A five-hour reception is therefore about six drinks per drinking guest, a four-hour reception five.

Crowd style moves that number. A light crowd — brunch weddings, older family, lots of kids on the dance floor — drinks about 25 percent less. A lively Saturday-night crowd drinks about 25 percent more. The calculator applies the modifier before it rounds, so you can compare a 4-hour lively reception against a 6-hour average one and see which needs more drinks. Prices must be added separately to compare costs.

How much alcohol for 100, 150, and 200 guests

You can skip the form. Every row below is the calculator's own output at the settings it starts on: a five-hour reception with the bar open, an average crowd, 20 percent of guests not drinking, a full open bar, and a champagne toast.

The drink totals below are before the shopping buffer and exclude the separate toast. Beer cases and wine, liquor, and champagne bottles already include the 10 percent buffer and round up to whole cases or bottles. Do not add the same buffer again.

100 guests: about 480 drinks — 8 cases of beer (24 cans or bottles each), 37 bottles of wine, and 10 bottles of liquor, plus 19 bottles of champagne for the toast.

150 guests: about 720 drinks — 12 cases of beer, 56 bottles of wine, and 14 bottles of liquor, plus 28 bottles of champagne.

200 guests: about 960 drinks — 16 cases of beer, 74 bottles of wine, and 19 bottles of liquor, plus 37 bottles of champagne.

On a beer-and-wine bar the split moves to 45 percent beer and 55 percent wine, so the same three guest counts need 10 cases and 59 bottles for 100 guests, 15 cases and 88 bottles for 150, and 20 cases and 117 bottles for 200. There is no liquor line at all, and that is where most of the saving comes from.

Change one input and the total moves. The same 100 guests over a six-hour reception need about 560 drinks instead of 480. A lively crowd drinks about 25 percent more than the average used above, a brunch crowd about 25 percent less. Set your own numbers in the calculator rather than scaling these rows by eye.

Choosing your bar type

A full bar splits the drink count roughly 35 percent beer, 35 percent wine, and 30 percent liquor — the standard US wedding ratio. If your crowd skews wine-forward or beer-forward, the downloadable list is your starting point; trim a bottle type and note it before you shop.

Beer-and-wine-only weddings are increasingly common and materially cheaper. The split shifts to about 45 percent beer and 55 percent wine. The third option — beer, wine, and a champagne toast — covers couples who want the toast moment without stocking spirits.

However you stock it, do not skip the champagne toast math if you are having one: one glass per guest, six glasses per bottle, plus a case of sparkling cider or alcohol-free sparkling wine so kids, drivers, and non-drinkers can raise a glass too.

Champagne toasts and signature drinks

The toast is ordered separately from the bar total, and it is the line that runs out first when someone estimates it. One glass per guest at six glasses per bottle, plus a 10 percent buffer, is 10 bottles for 50 guests, 19 for 100, 28 for 150, and 37 for 200.

The calculator allows six toast glasses per bottle of sparkling wine, prosecco, or champagne; choose bottles and prices locally. Plan alcohol-free sparkling separately for guests who do not drink. Tick the toast box and the champagne bottle quantity joins the shopping list. The download lists quantities, not prices.

A signature cocktail does not add to your drink total. It takes its share of the 30 percent liquor allocation and decides which spirit that share is. At 1.5-ounce pours a 750 ml bottle gives about 17 drinks and a 1.75 liter handle about 39.

If half the liquor drinks at a 100-guest wedding are one signature recipe, plan about 5 bottles of that spirit and 13 liters of its mixer. Make it the only liquor drink on the menu and you need about 10 bottles instead. Batch it in a dispenser rather than shaking to order, and count it in the liquor line rather than buying it twice.

What people forget to buy

Mixers are based on estimated liquor servings before the shopping buffer: three liters for every 17 estimated liquor drinks, rounded up to whole liters. They are not calculated from the rounded bottles you buy. At the default 100-guest settings, that means 26 liters of mixers, not 30 liters from multiplying the 10 purchased bottles by three. Adjust the mix to your cocktail recipes. Ice needs its own calculation because the amount depends on guest count, reception length, weather and how drinks are prepared and served. The How Much Ice for a Wedding: Free Calculator turns those requirements into pounds, bag counts and cooler sizes for your event.

Water and soft drinks are for everyone, not just non-drinkers: plan at least one and a half bottles per guest across the night. Guests alternate alcohol with water when it is visible and cold, which both slows the bar spend and keeps the dance floor standing.

If you buy retail, Costco and Total Wine both accept returns on unopened cases — buy your calculated amount, keep the receipts, and return what the night did not drink.

How to turn the shopping list into a wedding alcohol budget

This is a quantity calculator, not an alcohol cost calculator. To estimate your wedding alcohol budget, copy the shopping list into a separate worksheet and use current local prices or a written supplier quote. There is no universal price per wedding guest.

Beer cost = the listed number of 24-can cases multiplied by your price per case. Wine cost = the listed 750 ml bottles multiplied by your price per bottle. Liquor cost = the listed 750 ml bottles multiplied by your price per bottle; if you buy several spirits, price each separately and add them together. Match the pack or bottle size to the shopping list before comparing prices.

If you are having a toast, multiply the champagne or sparkling-wine bottle count by your chosen bottle price. Add any alcohol-free sparkling separately. Price mixers using your recipe quantities and local bottle or carton sizes, rounding up to the packs you need to buy. Price ice using the pounds required, the weight per bag, and your local price per bag. Enter water and soft-drink costs separately too.

Add venue or corkage charges, bartender or bar-package charges, delivery, rentals, and other required fees as separate amounts from your quotes. Enter applicable tax and any service charge or gratuity using the supplier or venue terms; do not guess a tax rate or count an included charge twice. If a package already includes drinks, mixers, or ice, do not add those retail costs again.

Your estimated budget is the beverage and supply subtotal plus those separately entered charges. The alcohol shopping counts already include their 10 percent quantity buffer, so do not add it again when pricing those counts. Confirm the final quantities and quote with your venue or bartender; this worksheet method does not add a price output to the calculator or its download.

Questions couples ask before they stock the bar

How much alcohol do I need for 100 guests? For a five-hour reception with a full open bar and an average crowd, about 480 drinks: 8 cases of beer, 37 bottles of wine, and 10 bottles of liquor, plus 19 bottles of champagne for the toast. The calculator turns those round numbers into your exact guest count and hours.

How many drinks per person at a wedding? Two in the first hour and one per hour after — about six drinks per drinking guest at a typical five-hour reception. About 80 to 85 percent of guests will actually drink.

Is a beer-and-wine bar enough? It can be, depending on your guests and venue. The calculator shifts the split to 45 percent beer and 55 percent wine; add a champagne toast if wanted. Compare local bottle prices and service quotes rather than assuming a fixed saving versus a full bar.

How much alcohol do I need for 150 guests? About 720 drinks at the same settings — 12 cases of beer, 56 bottles of wine, and 14 bottles of liquor, plus 28 bottles of champagne. Swap to a beer-and-wine bar and the same 150 guests need 15 cases of beer and 88 bottles of wine, with no liquor.

How much alcohol do I need for 200 guests? About 960 drinks — 16 cases of beer, 74 bottles of wine, 19 bottles of liquor, and 37 bottles of champagne. At this size, ask the venue how many bartenders and service points it staffs before you decide between a full bar and beer and wine.

How much beer and wine for 100 guests? On a beer-and-wine-only bar, plan 10 cases of beer and 59 bottles of wine for the same five-hour reception. That is the 45/55 split, not the 35/35/30 full-bar split.

How do I calculate drinks for a wedding myself? Multiply your guest count by 0.8 for the drinking share, then allow two drinks in the first hour and one for every hour after. Split the total 35 percent beer, 35 percent wine, and 30 percent liquor, then add a 10 percent buffer. The calculator runs the same arithmetic on your numbers.