How Much Alcohol for a Wedding? Bottle Counts for 50, 100 and 150 Guests

For 100 guests and a four-hour full bar, buy about 40 bottles of wine, 8 bottles of liquor and 4 cases of beer. The rule behind that number is one drink per guest per hour, split 50% wine, 30% liquor and 20% beer.

The tables below give the same math for 50, 100 and 150 guests, for both a full bar and beer and wine only. To plug in your own guest count and hours, use the wedding alcohol calculator.

The math in four steps

1. Count your drinks. Guests × hours the bar is open. Use open hours, not the length of the wedding. If the bar closes during dinner, take that time off.
2. Split by type. Zola's guide suggests 50% wine, 30% liquor and 20% beer for a full bar, or 75% wine and 25% beer without liquor.
3. Convert to containers. Use the pour counts below.
4. Round up. Rounding each line to a full bottle or case gives you a small cushion.

We use 16 pours per liquor bottle in the examples, which leaves a little room for a generous bartender.

Bottle counts for a full bar

These assume the bar is open for four hours.

Worked example: 100 guests

Four hours at one drink per hour gives 400 drinks.

• Wine: 50% is 200 glasses. At 5 per bottle, that is 40 bottles, a little over three cases of 12.
• Liquor: 30% is 120 pours. At 16 per bottle, that is 7.5, so buy 8 bottles.
• Beer: 20% is 80 servings. At 24 per case, that is 3.3, so buy 4 cases.

Bottle counts for beer and wine only

Same four hours. Serving no liquor saves the cost of spirits and mixers but pushes everyone toward wine.

Adjust for your crowd

The one drink rule is an average. Before you buy, move the numbers for what you know about your guests.

Change the hours first. It is the biggest lever. Cutting a four-hour bar to three takes 25% off every line. For 100 guests that is 100 fewer drinks, or 10 fewer bottles of wine.

Count only guests who drink. Take out children and anyone you know will not be drinking. A guest list of 100 with 15 kids and teens is an 85 person calculation, and 340 drinks instead of 400.

Shift the split. Think in terms of your actual group. If your friends are beer drinkers, move 10 points from wine to beer. Wine lovers from the older generation may skew the other way. For 100 guests, a 40/30/30 split gives 32 bottles of wine, 8 of liquor and 5 cases of beer.

Divide the wine by color. There is no universal ratio. Warm-weather weddings tend to move through more white and rosé, and a steak dinner pulls toward red. An even split is a safe default if you do not know.

Add a toast separately. A sparkling toast is on top of the bar count. At 8 pours per bottle, it is 7 bottles for 50 guests, 13 for 100 and 19 for 150. Skip it and toast with whatever is in people's hands if you need to save.

Signature cocktails instead of a full bar

Serving one or two signature drinks plus beer and wine is the common middle ground. You buy fewer spirits, need fewer mixers and keep the line moving.

For 100 guests over four hours, a sensible version uses the full-bar liquor share for the cocktails: 120 servings. If you offer two cocktails, split evenly, each is 60 drinks. A bottle of the base spirit gives about 16 drinks at 1.5 ounces, so plan 4 bottles of each. Mixers depend on your recipe, so multiply a single serving by 60 and shop from that.

Buying tips

Check if you are allowed to bring your own. Plenty of venues require you to buy through them or charge a corkage fee per bottle. Find out before you compare prices, because a discount wine loses its appeal if you pay a fee to open it. A venue may also require a licensed bartender or event insurance.

Buy the middle of the range. Guests rarely study labels at weddings. A clean, drinkable wine in a mid-priced range does the job, and buying by the case often earns a discount. Ask the store, because many offer one.

Do not forget everything else. Zola's guide lists bartenders, mixers, garnishes and glassware as separate costs. Add ice, soda, water, juices and cups. Those lines add up, and bar staff are also on the list for wedding vendor tips.

Provide good non-alcoholic options. Have something better than tap water for guests who do not drink. Zola's 2026 report notes that mocktail menus are joining bar programs.

Budget for the bar as its own line. In Zola's cost index, bar service averages $5,542. See how it fits with everything else in our wedding budget breakdown.

Plan for safe rides. You are hosting. Close the bar 30 minutes before the end, serve water and food late, and share rideshare or shuttle details with guests.

Can you return unopened alcohol?

Do not assume you can. This is the part of wedding bar planning most guides get wrong, because "buy extra and return it" depends entirely on where you live.

Zola notes that some liquor stores accept unopened bottles after a wedding, but tells you to check first. That caution matters, because state law often overrides store policy.

The last two rows are from a third-party roundup, and laws change, so treat them as a starting point. Costco is similar: reporting on its policy says it will not take alcohol back where state law prohibits it, and buying a large amount for a party in California and returning the leftovers is not allowed.

Our rule: before you buy, ask the store two questions. Can I return unopened bottles from this order, and for how long? Get the answer on your receipt or in an email. If the answer is no, buy closer to the exact count and choose wine and liquor you would happily drink over the next year. Liquor keeps well once sealed, so leftovers are a cheap bar for your first home rather than a loss.

Quick checklist

• Confirm whether the venue lets you supply alcohol, and whether a licensed bartender is required.
• Confirm your bar hours from your wedding day timeline.
• Run your numbers in the wedding alcohol calculator.
• Ask your store about case discounts and return rules.
• Buy two to four weeks out, so you have time to adjust once your RSVPs are in.
• Assign someone to get leftovers home at the end of the night.