How Much Alcohol for a Wedding: The Per-Person Calculation Guide
Quick answer: Plan for 1 drink per guest per hour for the first hour, then 0.5-0.75 drinks per hour after that. For a 5-hour reception with 100 guests, that's roughly 350-400 drinks total — about 10 cases of wine, 7 cases of beer, and 8 bottles of liquor for a full bar. Use our alcohol calculator for an exact breakdown.
Over-buying is the most common wedding bar mistake. Couples routinely purchase 20-30% more alcohol than gets consumed, spending $500-$1,500 on bottles that never get opened. The second most common mistake: running out of one category (usually wine) while having too much of another (usually beer).
Both problems come from guessing instead of calculating. Here's how to get it right.
The Drink-Per-Hour Formula
Industry bartenders use a standard consumption model that holds up remarkably well across wedding types:
| Hour of Reception | Drinks Per Guest Per Hour |
|---|---|
| Hour 1 (cocktail hour) | 1.0 - 1.25 |
| Hour 2 | 0.75 - 1.0 |
| Hour 3 | 0.5 - 0.75 |
| Hour 4 | 0.5 |
| Hour 5 | 0.25 - 0.5 |
Adjustment factors:
- Heavy-drinking crowd (college friends, known party group): add 20%
- Light-drinking crowd (older guests, religious family, kids present): subtract 20-30%
- Afternoon reception (brunch/lunch): subtract 30-40%
- Evening with dancing: use standard formula
- Summer outdoor wedding: beer consumption rises 15-20%; wine drops
Shopping List by Guest Count
These quantities assume a 4-5 hour reception with a standard mix: 40% wine, 30% beer, 30% spirits. Adjust the ratio based on what your crowd actually drinks.
| Guests | Wine (bottles) | Beer (bottles/cans) | Liquor (750ml bottles) | Champagne for Toast |
|---|---|---|---|---|
| 50 | 25-30 | 60-75 | 5-6 | 4-5 bottles |
| 75 | 35-42 | 85-110 | 7-8 | 6-7 bottles |
| 100 | 48-55 | 115-140 | 9-11 | 8-9 bottles |
| 125 | 58-68 | 140-175 | 11-13 | 10-11 bottles |
| 150 | 70-80 | 170-210 | 13-16 | 12-13 bottles |
| 200 | 92-108 | 225-280 | 17-21 | 16-17 bottles |
Beer math: Plan 2-3 beers per beer drinker. Offer at least one light and one craft option.
Liquor math: A 750ml bottle makes approximately 16 cocktails (1.5oz pour). Vodka and whiskey move fastest.
Champagne math: A bottle fills 5-6 flute pours for toasting. You need one pour per guest.
Get an exact list for your event with the alcohol calculator.
Wine, Beer, and Liquor Ratio
The 40/30/30 split is a starting point. Real ratio depends on your crowd:
| Crowd Profile | Wine % | Beer % | Spirits % |
|---|---|---|---|
| Mixed ages, formal evening | 45% | 25% | 30% |
| Young crowd, casual vibe | 25% | 40% | 35% |
| Older crowd, seated dinner | 50% | 20% | 30% |
| Outdoor summer wedding | 30% | 40% | 30% |
| Winter wedding | 40% | 20% | 40% |
Full Bar vs. Beer & Wine Only
A full open bar with premium liquor costs $45-$65 per person. Beer and wine only costs $25-$35 per person. Signature cocktails with beer and wine splits the difference at $30-$45 per person.
| Bar Type | Cost Per Person | Pros | Cons |
|---|---|---|---|
| Full open bar | $45-$65 | Everyone gets what they want | Expensive, over-consumption risk |
| Beer, wine, signature cocktails | $30-$45 | Controlled cost, still feels generous | Limited choice for spirit lovers |
| Beer and wine only | $25-$35 | Significant savings, simple logistics | No cocktails, some guests disappointed |
| Consumption bar (pay per drink) | $20-$45 | Only pay for what's poured | Final cost unpredictable |
How to Buy Without Overspending
Buy from stores with return policies. Total Wine, Costco (in most states), and many local wine shops accept returns on unopened bottles within 30-60 days. Buy 15-20% more than your estimate and return what's untouched.
Skip top-shelf liquor. In a mixed drink, nobody can tell the difference between a $25 vodka and a $45 one. Mid-range spirits (Tito's, Jameson, Bacardi) are the sweet spot for wedding bars.
Buy in bulk. Cases of wine typically come with 10-15% discounts. Costco and warehouse stores offer the best per-unit pricing on beer and spirits.
Consider kegs for casual weddings. A half-keg (165 12oz pours) costs $120-$200 — roughly $0.75-$1.20 per beer vs. $1.50-$2.50 for bottles. You need a keg tap and cups, but savings are substantial for large groups.
The Champagne Toast Question
Here's a secret: you don't need champagne for the toast. A sparkling wine like Cava ($8-$12/bottle) or Prosecco ($10-$15/bottle) is what most weddings pour. True Champagne starts at $35/bottle.
Even simpler: skip the dedicated toast pour entirely. Guests raise whatever they're already drinking. Many couples have moved to this approach and it works fine — nobody leaves a wedding thinking "the toast would have been better with champagne."
If you do the traditional pour, buy 1 bottle per 5-6 guests. For 100 guests: 17-20 bottles of sparkling wine at $10-$12 each = $170-$240. Not budget-breaking, but not zero either.
Timeline: When to Set Up the Bar
A well-planned bar timeline prevents the 6pm crush where everyone hits the bar simultaneously:
- Pre-ceremony (optional): Lemonade, iced tea, water. No alcohol unless it's a very casual vibe.
- Cocktail hour (60 min): Full bar or signature cocktails. This is peak consumption. Have 2 bartenders per 75 guests.
- Dinner (90 min): Wine service at tables, bar open but lower traffic. Switch to 1 bartender per 100 guests.
- Dancing (2-3 hours): Bar traffic picks up. Beer and simple drinks dominate. Consider closing the bar 30 minutes before the event ends.
- Last call: Announce 15 minutes before bar closes. Water and coffee available.
FAQ
How much does a wedding bar cost for 100 guests?
For a DIY bar (buying your own alcohol): $1,200-$2,500 depending on brand choices. For a venue-provided open bar: $2,500-$6,500 for 4-5 hours. Beer and wine only at a venue: $1,800-$3,500.
Can I bring my own alcohol to a venue?
Many venues allow it with a corkage fee ($10-$25 per bottle). Some don't allow outside alcohol at all. Ask early — this determines whether buying your own saves money. A $15 corkage fee on a $10 bottle of wine makes buying your own pointless.
How many bartenders do I need?
One bartender per 50-75 guests during cocktail hour. One per 75-100 during dinner and dancing. For 150 guests, plan 2-3 bartenders. Understaffing bartenders creates long lines and frustrated guests.
What do I do with leftover alcohol?
Return unopened bottles (check store policy first). Keep some for post-wedding celebrations. Gift bottles to the bridal party. Donate unopened bottles to a future event. Opened bottles can be used at the after-party or brought home.
Use our drink calculator to plan your quantities for any event size.
Next Steps
- Get an exact bottle count with the alcohol calculator
- Plan quantities for non-wedding events with the drink calculator
- Build your full wedding budget with the wedding budget calculator