How much beer do I need for 15 guests?

You need 3 cases of beer for 15 guests at a new year's eve party. This provides 54 total servings with a 15% buffer to ensure you don't run out.

How much beer per person for a new year's eve party?

Plan for 3.6 servings of beer per person at a new year's eve 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 15 guests, you'll need 3 cases to provide 54 total servings.

What percentage of guests will drink beer at a new year's eve party?

At a new year's eve party with 15 guests, approximately 12 guests (80%) will actively drink. Our formula accounts for this when calculating the 3 cases you need.

Should I buy extra beer as a buffer?

Yes! Our calculation of 3 cases already includes a 15% buffer (0 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 3 cases of beer last for 15 guests?

3 cases of beer will last approximately 5 hours for 15 guests at a new year's eve party. This calculation factors in the natural slowdown of consumption as the event progresses.

Calculate a different drink for this event

🍷 Wine 🍺 Beer viewing 🥂 Champagne 🥃 Spirits

How Much Beer for a 15 Guest New Year's Eve Party?

🍺

cases of beer

For a 15-guest new year's eve party lasting 5 hours

15% buffer included

Total servings

3.6

Per person

Buffer cases

How We Calculated This

Our bartender-tested formula, step by step

Estimate actual drinkers

15 guests × 80% drinking rate

= 12 drinkers

At small events, about 80% of guests typically drink alcohol.

Calculate base consumption

12 drinkers × 1.5 drinks/hour × 5 hours

= 90 base drinks

Industry standard is 1.5 drinks per person per hour for a 5-hour event.

Apply consumption decay

Adjusted for drinking slowdown over time (decay factor: 3.75)

= 68 adjusted drinks

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

Apply new year's eve party modifier

× 0.8 (-20% for beer)

= 54 beer servings needed

New Year's Eve Partys typically consume 20% less beer than average.

Convert to cases

54 servings ÷ 24 servings per case

= 2.3 cases (raw)

Each case of beer provides 24 servings.

Add 15% buffer & round up

2.3 × 1.15 = 2.6, rounded up

= 3 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	90 servings
50 guests	10 cases	180 servings
75 guests	15 cases	270 servings
100 guests	20 cases	360 servings
150 guests	30 cases	540 servings
200 guests	40 cases	720 servings

* All calculations include a 15% buffer. Amounts for new year's eve 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!)

36 lbs
Coolers (2 cases per cooler)

2 coolers
Buy

Email Your Shopping List

We'll send your complete list plus pro tips for a stress-free event

No spam, unsubscribe anytime

Pro Tips for Your New Year's Eve Party

Insider advice from experienced bartenders

💡

70% of champagne is consumed between 11:30pm and 12:15am - time your chilling.

⏰

Have champagne COLD and ready to pour at 11:55pm.

🎯

People pace themselves until 10pm then drinking accelerates.

🧊

Late-night parties need designated drivers or Uber - plan ahead.

✨

Noisemakers and party favors should be near the champagne station.

🛒 Buying Guide

This is THE champagne event. Plan 1 bottle per 3-4 guests for the midnight toast, plus additional for cocktails (French 75s, Kir Royale). Have regular bar options for earlier in the evening. Stock more than you think - better to have leftovers than run out at midnight.

Explore More Calculators

Find the perfect amounts for any event

More for your New Year's Eve Party

Different guest count?

Other events (15 guests)

🎉

Planning a different event?

Use our free calculator for any combination of drinks, events, and guest counts.

Browse All 336 Calculators