You'll Need 7-10 Kegs for 200 Guests (Standard 15.5-Gallon Kegs)

A 15.5-gallon keg yields 165 12-oz beers. For 200 guests, assume 2-3 drinks per person (400-600 beers total). Light drinkers may need 7 kegs; heavy drinkers or long events require 10+. Adjust for beer type (ales vs. lagers) and event duration.

Key Factors Affecting Keg Quantity

  • Drinks per guest: 2 (conservative) to 4 (party-heavy).
  • Beer type: Lagers/Pilsners (lighter, more consumed) vs. stouts/IPAs (slower consumption).
  • Event length:
    • 2-3 hours: 6-8 kegs
    • 4+ hours: 9-12 kegs
  • Other drinks: Wine/cocktails reduce beer demand by 20-30%.
  • Glass size: 16-oz pints = 25% fewer servings per keg vs. 12-oz.

Keg Size Comparison Table

Keg Type Size (Gallons) 12-oz Beers per Keg Kegs Needed for 200 Guests (2 Drinks Each) Kegs Needed for 200 Guests (3 Drinks Each)
Full-Size (Standard) 15.5 165 5-6 7-8
Pony Keg 7.75 82 10-11 15-16
Quarter Barrel 7.75 82 10-11 15-16
Sixth Barrel (Slim) 5.16 55 15-16 22-23

Pro Tips to Reduce Waste

  1. Mix keg sizes: Use 1-2 full-size kegs + smaller kegs for variety.
  2. Track RSVP confirmations: Adjust kegs if actual attendance drops below 180.
  3. Offer non-alcoholic options: Cuts beer consumption by 10-20%.
  4. Start with 70% of estimated kegs: Have a backup plan for emergency deliveries.
  5. Use a jockey box: Keeps beer cold without ice, reducing spoilage.

Common Mistakes to Avoid

  • Underestimating thirst: Hot weather or dancing increases consumption by 30-50%.
  • Ignoring leftovers: Unopened kegs last 2-3 months if refrigerated; opened kegs spoil in 24-48 hours.
  • Overordering varieties: Stick to 2-3 beer types to minimize partial kegs.
  • Forgetting ice: A full-size keg needs 20-30 lbs of ice per hour to stay cold.

Alternative Drink Calculations

  • Bottles/cans: 400-600 beers = 33-50 cases (24-pack).
  • Wine: 1 bottle = 5 glasses → 80-120 bottles for 200 guests.
  • Liquor: 1 liter = 22 drinks → 18-27 liters for 400-600 cocktails.