Wedding Alcohol Calculator
Calculate the exact wine, beer, and spirits quantities for your bar based on guest count, reception length, and crowd type.
~128 of 150 guests drinking
Alcohol Shopping List
Total Drinks Needed
512
128 drinking guests × 4 hours = 512 · 1x drinking modifier
Assumes 1 drink per guest per hour, 5 drinks per 750ml wine bottle, 1 beer = 1 drink, and ~16 drinks per 750ml liquor bottle.
52
Bottles of Wine
256 wine drinks (50%)
5
Cases of Beer
+8 extras (128 total, 25%)
8
Bottles of Spirits
128 liquor drinks (25%)
Your math is only as good as your headcount.
The average wedding has a 15% drop-off rate. If you buy drinks today, you are buying for ~23 people who aren't coming, wasting $121. iDoTogether sends one personal link to their phones, getting you hard RSVPs instantly so you only buy what you actually need.
Estimated Budget
Safe Minimum
$806
Generous Buffer
$1,272
Based on typical retail prices. Actual costs vary by brand, region, and store.
The math is done. Now go get the actual data.
Stop chasing adults for their basic information.
You are organizing an event for 150 people. You shouldn't manage it with chaotic group texts and a fragile spreadsheet. Send one personal link. Let guests enter their own addresses, meal choices, and RSVPs. You just watch the numbers update.
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Frequently Asked Questions
For a standard 4 hour reception with 150 guests, plan for 52 bottles of wine, 5 cases of beer, and 8 bottles of spirits. Total budget: 1,056 to 1,722. These numbers assume average drinking levels and a 15% non-drinker rate.
With a 25% beer split, 150 wedding guests need 128 beers over 4 hours, coming to 5 cases plus 8 extras. Backyard BBQ crowds should increase the beer percentage to 60 to 65% using the event style selector.
It provides a strong planning baseline using industry averages: 1 drink per guest per hour, a drink split based on your selected event style, plus standard servings per bottle. Use the Event Style selector to match your crowd. A backyard BBQ skews heavily toward beer while a wine dinner needs far less spirits.
Yes. Use the Event Style selector to match your event type. Backyard BBQ skews heavily toward beer (65%), Wine Dinner is 70% wine, and Open Bar puts more weight on spirits (50%). Each preset uses real world crowd averages for that event type.
Use the drinking level toggle. Light works well for daytime or family heavy events, Average fits most receptions, and Heavy is better for bar forward crowds.
Absolutely. Kids, pregnant guests, and teetotalers all reduce your actual alcohol need. Use the Non Drinker % slider to exclude them from the drink calculations. The default 15% is a reasonable starting point for a typical mixed age crowd.
The champagne card accounts for a single toast glass for every guest, including non drinkers, since most people will take a glass even if they don't usually drink. At roughly 6 glasses per 750ml bottle, this is a separate purchase from your reception alcohol.
Yes, a 10-15% buffer is standard for larger weddings. But remember: the best way to protect your budget isn't guessing your buffer. It's having a accurate, confirmed headcount before you head to the liquor store.
No. This calculator estimates alcohol only. Plan mixers, water, soda, juice, coffee, and ice separately based on your menu and venue requirements.
Finalize your major order 4 weeks out, right after your RSVP deadline. (Pro-tip: If you use iDoTogether to collect RSVPs, your dashboard will show you exactly when 100% of your guests have answered, so you aren't guessing when it's safe to buy).
Done planning drinks? Set up your guest list and get confirmed RSVPs →
How Much Alcohol for 150 Wedding Guests?
150 guests is a large wedding by US standards, and the bar budget becomes a meaningful line item. With 128 drinking guests over 4 hours, plan for 52 bottles of wine, 5 cases of beer, and 8 bottles of spirits. Budget between 1,056 and 1,722. At this size, buying based on estimates instead of confirmed attendance is expensive. A standard 15% no-show rate means roughly 22 empty seats and $160 to $270 in wasted alcohol spend.
At 150 guests, 22 no-shows is normal and means $160 to $270 in surplus alcohol if you buy on estimates. iDoTogether confirms your real headcount before you spend a dollar.