How Many Cases of Beer Are in a Half Keg?

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Are you planning a party or event and wondering how much beer you’ll need? One popular option is a half keg, but how many cases of beer does it actually contain? In this article, we’ll delve into the world of half kegs and break down the capacity to help you make an informed decision. So, let’s explore the fascinating question: how many cases of beer are in a half keg?

Understanding the Capacity of a Half Keg

To comprehend the quantity of beer in a half keg, it’s crucial to grasp its standard size and volume. A half keg typically holds 15.5 gallons or 58.7 liters of beer. However, it’s important to note that the measurement of beer containers can vary. For a better understanding, here’s a handy conversion chart:

Container Size Gallons Liters
Half Keg 15.5 58.7
Quarter Keg 7.75 29.3
Sixth Barrel 5.17 19.5

Calculating the Number of Cases in a Half Keg

Now that we know the size of a half keg, let’s determine how many cases of beer it contains. A beer case typically holds 24 bottles or cans. To calculate the number of cases in a half keg, we use the following formula:

Number of Cases = (Half Keg Volume in Ounces) / (12 ounces per beer bottle or can) / 24

For example, let’s say we have a half keg with a volume of 1,984 ounces. Using the formula, we can calculate:

Number of Cases = 1984 / 12 / 24 = 6.92 cases

Therefore, a half keg with a volume of 1,984 ounces contains approximately 6.92 cases of beer.

Factors Affecting the Number of Cases in a Half Keg

While the formula above provides a general estimation, it’s essential to consider several factors that can affect the actual quantity of beer in a keg. Two critical factors to note are foam and carbonation. When beer is poured, it produces foam, which takes up space in the keg. Additionally, carbonation levels can impact the volume of beer. Higher carbonation results in more gas, potentially reducing the liquid volume.

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Temperature and pressure also play a role in keg capacity. Temperature changes can cause the beer to expand or contract, affecting the total volume. Similarly, the pressure at which the keg is stored and dispensed can impact the amount of beer available. These factors highlight the importance of handling and storing kegs correctly to ensure accurate volume calculations.

FAQ (Frequently Asked Questions)

  1. How many beers are typically in a half keg?
    A half keg typically contains around 165 12-ounce beers, which is equivalent to approximately 6.9 cases.

  2. Can I fit a half keg in a standard refrigerator?
    Half kegs can be quite large and may not fit in a standard refrigerator. It’s best to measure your fridge’s dimensions beforehand or consider alternative cooling options.

  3. How long does a half keg of beer stay fresh?
    Once tapped, a half keg of beer should ideally be consumed within 2-3 days to maintain optimal freshness and taste. After this period, the beer may start to lose its carbonation and flavor.

  4. Are all half kegs of the same size?
    Yes, in the United States, standard half kegs have a consistent size of 15.5 gallons or 58.7 liters. However, it’s always advisable to double-check with your supplier to ensure uniformity.


In conclusion, understanding the capacity of a half keg is crucial when planning a gathering or purchasing beer. A half keg typically holds around 6.9 cases of beer, providing an ample supply for your festivities. However, it’s important to consider factors like foam, carbonation, temperature, and pressure, which can affect the actual volume of beer in the keg. By keeping these factors in mind, you can make an informed decision and ensure your guests have a great time. So, next time you’re wondering how much beer a half keg contains, you’ll have the knowledge to calculate it accurately. Cheers!

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