How much beer do I need for 300 guests?

You need 51 cases of beer for 300 guests at a halloween party. This provides 1046 total servings with a 15% buffer to ensure you don't run out.

How much beer per person for a halloween party?

Plan for 3.5 servings of beer per person at a halloween party. This accounts for the fact that not everyone drinks alcohol and consumption naturally slows as the event progresses.

How many servings are in a case of beer?

One case of beer contains 24 servings. For 300 guests, you'll need 51 cases to provide 1046 total servings.

What percentage of guests will drink beer at a halloween party?

At a halloween party with 300 guests, approximately 195 guests (65%) will actively drink. Our formula accounts for this when calculating the 51 cases you need.

Should I buy extra beer as a buffer?

Yes! Our calculation of 51 cases already includes a 15% buffer (7 extra cases). This ensures you won't run out even if some guests drink more than average. It's always better to have leftovers than to run short.

How long will 51 cases of beer last for 300 guests?

51 cases of beer will last approximately 4 hours for 300 guests at a halloween party. This calculation factors in the natural slowdown of consumption as the event progresses.

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How Much Beer for a 300 Guest Halloween Party?

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cases of beer

For a 300-guest halloween party lasting 4 hours

15% buffer included

1046

Total servings

3.5

Per person

Buffer cases

How We Calculated This

Our bartender-tested formula, step by step

Estimate actual drinkers

300 guests × 65% drinking rate

= 195 drinkers

At xlarge events, about 65% of guests typically drink alcohol.

Calculate base consumption

195 drinkers × 1.5 drinks/hour × 4 hours

= 1170 base drinks

Industry standard is 1.5 drinks per person per hour for a 4-hour event.

Apply consumption decay

Adjusted for drinking slowdown over time (decay factor: 3.25)

= 951 adjusted drinks

People drink faster in the first hour and slow down as the event progresses.

Apply halloween party modifier

× 1.1 (+10% for beer)

= 1046 beer servings needed

Halloween Partys typically consume 10% more beer than average.

Convert to cases

1046 servings ÷ 24 servings per case

= 43.6 cases (raw)

Each case of beer provides 24 servings.

Add 15% buffer & round up

43.6 × 1.15 = 50.1, rounded up

= 51 cases

Always round up and add a buffer. Running out is worse than having leftovers!

* Why trust this formula?

Based on industry standards and refined by bartenders with 30+ years of experience. We factor in consumption decay (people drink less as events progress) and real-world drinking percentages.

📊 Quick Reference: Beer by Guest Count

Guests	Beer Needed	Total Servings
25 guests	5 cases	87 servings
50 guests	9 cases	174 servings
75 guests	13 cases	262 servings
100 guests	17 cases	349 servings
150 guests	26 cases	523 servings
200 guests	34 cases	697 servings

* All calculations include a 15% buffer. Amounts for halloween party.

Your Shopping List

Everything you need, plus essentials you might forget

🍺

Beer

The main event

cases

Don't forget these

Ice (Keep those beers cold!)

612 lbs
Coolers (2 cases per cooler)

26 coolers
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Pro Tips for Your Halloween Party

Insider advice from experienced bartenders

💡

Specialty cocktails with spooky names are a must - batch them ahead.

⏰

Dark spirits (whiskey, dark rum) fit the theme better than clear spirits.

🎯

Punch bowls with dry ice create amazing effects.

🧊

People in elaborate costumes drink slower - they don't want to spill.

✨

Adult-only parties consume 40% more than family Halloween events.

🛒 Buying Guide

Halloween parties are cocktail-heavy. Plan for 2-3 specialty cocktails per person plus regular bar options. Red wine fits the theme well. Have themed cups and garnishes.

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