Guide to Beer Keg Sizes

Keg Sizes and Types

It’s a wide world of beer out there, and we’re all just living in it. If you’ve decided to install a kegerator in your space, you may be considering various options. In order to make the most of your decision, you should know about the different keg sizes offered on the market today.

Keg Size Quick Reference Chart
  Cornelius Keg Sixth Barrel Keg Quarter Barrel Keg Slim Quarter Keg Half Barrel Keg
Gallons 5 5.16 7.75 7.75 15.5
Ounces 640 661 992 992 1,984
Liters 18.93 19.55 29.34 29.34 58.67
Height 23″ 23⅜” 13⅞” 23⅜” 23⅜”
Width 9″ 9¼” 16⅛” 11⅛” 16⅛”
Bottles / Cans (12oz) 53 55 82 82 165
Pints (16 oz) 40 41 62 62 124
Growlers (64 oz) 10 10 15.5 15.5 31
Alternate Names Corny Keg ⅙ Barrel,
Sixtels
Pony Keg,
Stubby Quarter
Tall Quarter Full Size Keg,
Full Keg

Keg Size Quick Reference Chart
Cornelius Keg
Gallons 5
Ounces 640
Liters 18.93
Height 23″
Width 9″
Bottles / Cans (12oz) 53
Pints (16 oz) 40
Growlers (64 oz) 10
Alternate Names Corny Keg
Sixth Barrel Keg
Gallons 5.16
Ounces 661
Liters 19.55
Height 23⅜”
Width 9¼”
Bottles / Cans (12oz) 55
Pints (16 oz) 41
Growlers (64 oz) 10
Alternate Names ⅙ Barrel,
Sixtels
Quarter Barrel Keg
Gallons 7.75
Ounces 992
Liters 29.34
Height 13⅞”
Width 16⅛”
Bottles / Cans (12oz) 82
Pints (16 oz) 62
Growlers (64 oz) 15.5
Alternate Names Pony Keg,
Stubby Quarter
Slim Quarter Keg
Gallons 7.75
Ounces 992
Liters 29.34
Height 23⅜”
Width 11⅛”
Bottles / Cans (12oz) 82
Pints (16 oz) 62
Growlers (64 oz) 15.5
Alternate Names Tall Quarter
Half Barrel Keg
Gallons 15.5
Ounces 1,984
Liters 58.67
Height 23⅜”
Width 16⅛”
Bottles / Cans (12oz) 165
Pints (16 oz) 124
Growlers (64 oz) 31
Alternate Names Full Size Keg,
Full Keg

Keg Size Details

These different keg sizes each have different purposes and will be used in different situations, but if you know what you’re getting into, it will help you make an informed decision about what kind of kegerator you need to maximize your beer enjoyment.

corny keg

Cornelius Keg

The tall, cylindrical Cornelius Keg (or Corny Keg) was originally developed (and still used) to store, distribute, and dispense soda like Pepsi or Coke.

However, with a five-gallon capacity (the size of a typical homebrew batch) and a design that’s easy to fill, clean, and maintain, Corny Kegs have become very popular with homebrewers who want to skip the process of bottling beer and enjoy their brew on draft.  

Most Cornelius Kegs utilize a ball-lock style connection, but some older models still feature a pin-lock style.

  • Pints (16 oz) of beer per keg: Approx. 40
  • Cans / Bottles (12oz) per keg: Approx. 53
  • Capacity: 5 gallons / 18 liters / 640 ounces

sixtel keg

Sixth Barrel Keg

A standard Sixth Barrel Keg (⅙ Barrel) is very similar in size, shape, and capacity to a Cornelius Keg, but just a little bit bigger (5.16 gallon capacity vs. 5.0 in a Corny Keg). The main difference is that this style doesn’t utilize a ball or pin-lock connection system, but a traditional keg valve that requires a keg coupler for dispensing.

⅙ Barrels (or sixtels, as they’re often called) have become increasingly popular because many craft brewers offer their small-batch experiments only in kegs of this size. Furthermore, many beer-minded restaurateurs that want to offer their customers a wide variety will opt for Sixth Barrel Kegs because they take up less space than their bigger brothers.  

If you opt for a dual-tap kegerator in your home, you’ll likely end up having many different brews offered in Sixth Barrel Kegs because you can fit two of these in one standard kegerator cabinet.

  • Pints of beer per keg: Approx. 41
  • Cans / Bottles (12oz) per keg: Approx. 55
  • Capacity: 5.16 gallons / 20 liters / 661 ounces

quarter barrel keg

Quarter Barrel Keg

The Quarter Barrel Keg (AKA Pony Keg or Stubby Quarter) looks like the standard beer keg you’re used to from keg parties but much shorter (hence the “stubby” description). It’s 7.75 gallons and perfect for small parties.

  • Pints of beer per keg: Approx. 62
  • Cans / Bottles (12oz) per keg: Approx. 82
  • Capacity: 7.75 gallons / 30 liters / 992 ounces

slim quarter keg

Slim Quarter Keg

This tall, slender keg holds the exact same amount as its stubbier relative, the Quarter Barrel Keg. Much like a ⅙ Barrel, the dimensions of this keg make it a popular choice for people with dual-tap kegerators, but it holds 7.75 gallons, making it more than two gallons larger than a sixtel.

  • Pints of beer per keg: Approx. 62
  • Cans / Bottles (12oz) per keg: Approx. 82
  • Capacity: 7.75 gallons / 30 liters / 992 ounces

half barrel keg

Half Barrel Keg

The grandaddy of them all, the 15.5 gallon Half Barrel Keg is probably what you picture when you think of a beer keg. This is the vessel that’s been used to distribute macro brews for generations, and if you’re reading this, it’s likely that you’ve served yourself a red Solo cup or two from one of these beauties.

Of course, this is also the keg that most bars and restaurants use, and it will also fit any standard-sized kegerator. If you’re interested in trying new brews, you’ll probably want to stick with the smaller sizes.

  • Pints of beer per keg: Approx. 124
  • Cans / Bottles (12oz) per keg: Approx. 165
  • Capacity: 15.5 gallons / 58.7 liters / 1,984 ounces

If you still have questions, feel free to give us a call at 877.636.3673 anytime Monday-Friday between 9am – 6pm EST.

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7 Comments

  • Luis Moreno October 1, 2016 @ 10:40pm

    Great info guys! Thanks for the help!

  • Alex Kill April 13, 2017 @ 6:29pm

    Thanks for the info guys it really helped!!

  • Zamir Zahavi April 22, 2017 @ 6:04pm

    Awesome and helpful information.

  • Richard Boyer April 27, 2017 @ 11:30pm

    Is there a keg called a ” ferkin “?

  • jade potter May 17, 2017 @ 2:45pm

    how many glasses of beer can be in a 40 gallon keg of beer?

  • Dan s June 14, 2017 @ 7:19pm

    I love beer, keg is where it is at

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