Gallons to Cases Converter

Convert beer volume measurements from gallons to cases (24 x 12 oz bottles/cans) quickly and accurately. Enter any gallon value and get the equivalent number of standard 24-pack beer cases, perfect for event planning, wholesale purchasing, and inventory management.

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Common Gallons to Cases Conversions

Gallons Cases (24-pack)
1 gallon0.44 cases
2.25 gallons1 case
5 gallons2.22 cases
7.75 gallons (quarter barrel)3.44 cases
10 gallons4.44 cases
15.5 gallons (half barrel)6.89 cases
20 gallons8.89 cases
31 gallons (full barrel)13.78 cases
50 gallons22.22 cases
100 gallons44.44 cases

How to Convert Gallons to Cases

Converting gallons to cases is essential for anyone purchasing beer in bulk, managing bar inventory, or planning large events. A standard beer case contains 24 bottles or cans of 12 ounces each, totaling 288 fluid ounces per case.

The Conversion Formula

The formula to convert gallons to cases is:

cases = gallons x 128 / 288

This formula works because one US gallon contains 128 fluid ounces, and a standard case contains 288 fluid ounces (24 beers x 12 oz each). Simplified, this gives us approximately 0.444 cases per gallon.

Example 1: Converting 15.5 Gallons to Cases

cases = 15.5 x 128 / 288 = 1984 / 288 = 6.89 cases

A half-barrel keg (15.5 gallons) equals about 7 cases of beer.

Example 2: Converting 31 Gallons to Cases

cases = 31 x 128 / 288 = 3968 / 288 = 13.78 cases

A full beer barrel equals about 14 cases of beer.

What Is a Beer Case?

A standard beer case in the United States contains 24 bottles or cans, each holding 12 fluid ounces. This gives us:

What Is a Gallon?

The US gallon is a unit of volume equal to 128 US fluid ounces or about 3.785 liters. In the beer industry, gallons are commonly used for:

Keg to Case Equivalents

Understanding how kegs compare to cases helps with purchasing decisions:

Cost Comparison: Kegs vs Cases

When deciding between kegs and cases, consider these factors:

Applications of This Conversion

Event Planning: When calculating beer needs for parties, weddings, or corporate events, converting between kegs (measured in gallons) and cases helps determine the most cost-effective purchasing option.

Bar Management: Bars track inventory in different units. Converting between kegs and cases ensures accurate stock counts and ordering.

Wholesale Purchasing: Distributors and retailers use this conversion when comparing bulk pricing between keg and case formats.

Brewery Production: Small breweries planning packaging runs need to know how many cases they can fill from their fermentation vessels measured in gallons.