Free calculator
Free Party Drink Calculator
A party drink calculator estimates how much beer, wine, spirits, mixers, ice, and non-alcoholic drinks to buy for an event. Enter your guest count, party duration, and drinking preferences to get a practical shopping list in bottles, cases, and gallons.
Pair this with the party food calculator, event budget planner, or guest list tool to finish the rest of your event plan.
Party details
About 32 drinking guests and 13 non-drinkers based on your current headcount.
A flexible mix of beer, wine, and simple cocktails.
How to use this party alcohol estimator
Use these steps to turn a rough headcount into a shopping list you can actually buy from.
Step 1
Set the party size
Enter your total guest count, event length, and what share of guests you expect to drink alcohol.
Step 2
Choose the drinking pattern
Pick a crowd style and beverage mix so the estimate matches a light brunch, a standard party, or a more celebratory bar.
Step 3
Shop from the rounded totals
Use the calculated cases, bottles, mixers, ice, and non-alcoholic counts as your purchase list and print it when you are ready to shop.
Frequently asked questions
Practical answers for calculating alcohol for a party, avoiding shortages, and covering non-drinkers.
How much alcohol should I buy for a party?
A reliable starting point is 2 drinks per person for the first hour and 1 drink per person for every additional hour, then adjust for how many guests will actually drink and how lively the crowd is. This calculator applies that rule, adds a small shopping buffer, and converts servings into cases, bottles, mixers, and ice.
How many beers, bottles of wine, and liquor bottles do I need for 100 guests?
It depends on your event length and beverage mix. For a 4-hour party with about 70 drinking guests and a balanced bar, you will usually land in the range of roughly 7 to 9 cases of beer, 10 to 14 bottles of wine, and 6 to 8 bottles of spirits. Use the calculator to adjust that range for your actual guest count and preferences.
How much ice do I need for an event with alcohol?
Most hosts underestimate ice. Plan for ice both to serve drinks and to chill backup bottles and cans. A practical target is around 1.5 to 2 pounds per guest for parties with alcohol, with more needed for hot weather or events where drinks are kept in coolers.
What non-alcoholic drinks should I offer at a party?
Always offer water, soda, and at least one easy batch option such as lemonade, iced tea, or juice. Non-drinking guests, designated drivers, and kids need real beverage coverage too, so this calculator adds a separate non-alcoholic estimate rather than assuming everyone will only drink alcohol.
Is it better to overbuy or underbuy alcohol for a party?
Slightly overbuying is safer because unopened beer, wine, soda, and spirits usually keep well after the event. Running out early creates a worse guest experience, so the calculator rounds to store-friendly package sizes and includes a small buffer.
More free planning tools
Build the full event plan with the rest of the PartyHub Rental toolkit.
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