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Comprehensive Event Alcohol & Catering Estimator

Calculate exactly how much beer, wine, liquor, and ice you need to buy for your wedding or party so you don't run out.

Event Alcohol Estimator

Get an exact shopping list for your wedding or party.

FAQ

Frequently asked questions

How many drinks per person should I calculate?
The standard catering rule of thumb is 1 drink per guest per hour. So, a 4-hour party with 100 guests equals 400 drinks. However, this calculator automatically adjusts this based on whether it's a daytime event or if your guests are heavy drinkers.
How many drinks are in a bottle of wine?
A standard 750ml bottle of wine contains about 5 standard glasses (5 ounces each). This calculator uses that exact ratio to tell you how many bottles to buy.
How many drinks are in a bottle of liquor?
A standard 750ml bottle of liquor (vodka, whiskey, etc.) yields about 16 to 17 standard mixed drinks (1.5 ounces of liquor per drink).
How much ice do I need?
You need more ice than you think! If you are serving a full bar, plan for 1.5 to 2 pounds of ice per guest to ensure you have enough for drinks and for chilling bottles in tubs.
Methodology, assumptions & limitations

How we calculate: This calculator uses standard, peer-reviewed mathematical formulas implemented in TypeScript. All calculations run entirely in your browser — no data is sent to any server.

Assumptions: Unless stated otherwise, calculations assume constant rates over the specified period, no taxes or fees beyond those explicitly input, and standard compounding conventions for the formula type.

Limitations: Results are estimates for planning purposes. Real-world outcomes may differ due to variable rates, regulatory changes, taxes, fees, inflation, or other factors not modeled. This tool does not constitute professional advice.

When NOT to use this: Do not rely solely on this calculator for critical decisions where exact precision is required beyond the decimal places shown.

Feedback: Found an error or have a suggestion? Contact us — we review and correct reported issues within 48 hours.

Deep Dive Guide

The Ultimate Event Alcohol Calculator: How Much to Buy for Weddings and Parties

Never run out of drinks again. Learn the catering industry's exact mathematical formulas for calculating beer, wine, liquor, and ice for any event.

Read Full Guide

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