House Party Drink Calculator
Build an at-home party shopping estimate from your guest list, event length, non-drinkers, and the beer, wine, or cocktails your crowd prefers.
Estimate My InventoryEstimate House Party Inventory
Defaults: 30 guests, 4 hours, no assumed non-drinkers, and a Beer Lovers profile. The buffer starts off. Adjust the inputs for your gathering.
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Default Calculator Assumptions
How the Estimate Works
1. Count Active Drinkers
Enter all guests, then exclude the percentage who will not drink alcohol.
2. Set Party Duration
The model reserves 2 servings in hour one and 1 in each later hour.
3. Round to Packages
Results become whole beer cases, wine bottles, and liquor bottles.
House Party Quick Reference
Four-hour Beer Lovers inventory with no assumed non-drinkers or buffer
| Guests | Base servings | Beer | Wine bottles | Liquor bottles |
|---|---|---|---|---|
| 10 | 50 | 25 beers (2 cases) | 3 | 1 |
| 20 | 100 | 50 beers (3 cases) | 5 | 2 |
| 30 | 150 | 75 beers (4 cases) | 8 | 3 |
| 50 | 250 | 125 beers (6 cases) | 13 | 4 |
Category and package rounding can leave unused capacity. Mixers, ice, water, food, and alcohol-free drinks are outside this estimate.
Match the Actual Menu
Beer Lovers is a starting profile, not a claim about every house party. Change the mix and non-drinker input based on your invitees and planned drinks.
Host Responsibly
Keep food, water, and alcohol-free choices visible, prevent underage access, follow local laws, and arrange safe transportation.
Frequently Asked Questions
How much alcohol do I need for a house party of 20 people?
For 20 guests, 4 hours, no assumed non-drinkers, a Beer Lovers profile, and no buffer, the calculator reserves 100 servings: 50 beers (3 cases), 5 wine bottles, and 2 liquor bottles. Treat this as inventory to purchase, not a consumption target.
What does the default house party example produce?
The default is 30 guests for 4 hours, with no assumed non-drinkers, a 50% beer, 25% wine, and 25% liquor Beer Lovers split, and the optional buffer switched off. It produces 150 base inventory servings, packaged as 4 beer cases, 8 wine bottles, and 3 liquor bottles.
How does the house party calculator estimate inventory?
It reserves 2 servings per active drinking guest for the first hour and 1 for each later hour. It applies the selected profile, rounds each category up, and converts it using 24 beers per case, 5 wine servings per bottle, and 17 liquor servings per 750ml bottle.
Should I use the Beer Lovers profile for every house party?
No. It is only the page default. Choose Standard Crowd, Wine Lovers, Cocktail Crowd, Beer & Wine Focus, or Beer Lovers based on the menu and what you know about your own invitees.
How much ice and mixer inventory should I buy?
The calculator does not estimate either one. Work from the cocktails and non-alcoholic drinks you will serve, use each recipe yield, and check chilling and storage needs with anyone helping run the bar.
How can I price the house party bar?
Apply current local prices to the calculated beer cases, wine bottles, and liquor bottles. Then add mixers, water, alcohol-free drinks, food, ice, delivery, deposits, and taxes that apply to your plan rather than relying on a universal per-person price.
Plan your house party bar
Adjust the defaults to build an inventory estimate for your gathering.
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