Guide to Beer Keg Sizes and Dimensions

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 50 Litre Keg
Capacity (gal / oz / L) 5.0 gal
640 oz
5.16 gal
661 oz
7.75 gal
992 oz
7.75 gal
992 oz
15.5 gal
1,984 oz
13.2 gal
1,690 oz
Bottles / Cans (12oz) 53 55 82 82 165 140
Pints (16 oz) 40 41 62 62 124 105
Growlers (64 oz) 10 10 15.5 15.5 31 26
Height 23″ 23⅜” 13⅞” 23⅜” 23⅜” 20.94″
Width (Diameter) 9″ 9¼” 16⅛” 11⅛” 16⅛” 16.06″
Weight (Full) 55 lbs 58 lbs 87 lbs 87 lbs 160 lbs 130 lbs
Alternate Names Corny Keg ⅙ Barrel,
Pony Keg,
Stubby Quarter
Tall Quarter Full Size Keg,
Full Keg
Import Keg,
European Barrel,
50 Liter

Keg Size Quick Reference Chart
  Corny Sixtel ¼ Keg Slim ¼ ½ Keg 50L
Gal 5.0 5.16 7.75 7.75 15.5 13.2
Oz 640 661 992 992 1,984 1,690
Liters 18.93 19.55 29.34 29.34 58.67 50.0
53 55 82 82 165 140
(16 oz)
40 41 62 62 124 105
(64 oz)
10 10 15.5 15.5 31 26
Height 23″ 23⅜” 13⅞” 23⅜” 23⅜” 20.94″
Width 9″ 9¼” 16⅛” 11⅛” 16⅛” 16.06″
Wt (Full) 55 lbs 58 lbs 87 lbs 87 lbs 160 lbs 130 lbs

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

Alternate Names: Corny Keg, Homebrew Keg, Soda 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
  • Dimensions: 23″ x 9″

sixtel keg

Sixth Barrel Keg

Alternate Names: Sixtel, 1/6 Barrel, 1/6 BBL

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
  • Dimensions: 23⅜” x 9¼”

quarter barrel keg

Quarter Barrel Keg

Alternate Names: Pony Keg, Stubby Quarter, 1/4 BBL

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
  • Dimensions: 13⅞” x 16⅛”

slim quarter keg

Slim Quarter Keg

Alternate Names: Tall Quarter, Slim 1/4 BBL

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
  • Dimensions: 23⅜” x 11⅛”

half barrel keg

Half Barrel Keg

Alternate Names: Full Size Keg, Full Keg, 1/2 BBL

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
  • Dimensions: 23⅜” x 16⅛”

50 Litre Keg

50 Litre Keg

Alternate Names: Import Keg, European Barrel, 50 Liter

A 50 Litre Keg is used by European Breweries and is similar in size to its American cousin, the Half Barrel Keg. This is the most common keg size in European countries, including the UK. Popular import brands in the US include Heineken, Newcastle, Hoegaarden and Stella Artois.

Keep in mind that import kegs do not use a standard US Sankey D coupler. Check our keg coupler guide or ask your supplier to make sure you have the right coupler for your keg.

  • Pints (16oz) of beer per keg: Approx. 105
  • Cans / Bottles (12oz) per keg: Approx. 140
  • Capacity: 13.2 gallons / 50 liters / 1,690 ounces
  • Dimensions: 20.94″ x 16.06″

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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  • 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?

    • Ray September 1, 2017 @ 1:00pm

      How big are your glasses?
      40 gasses if they are 1 gal each

  • Dan s June 14, 2017 @ 7:19pm

    I love beer, keg is where it is at

  • Charlene Jordan September 4, 2017 @ 9:11am

    Thxs guys geart help

  • sandra rivas January 11, 2018 @ 9:20pm

    please send quote for 25 keg slim keg 7.75gal o sea 30lts


  • L James May 16, 2018 @ 12:39pm

    As I do not drink beer, but throwing a gathering for my husband and his friends this was very helpful and took the guess work out. THANK YOU….

  • Mark Sweyer May 16, 2018 @ 6:29pm

    Great info as well! Thankyou!!

  • Ed Haagen June 4, 2018 @ 7:00pm

    I would like to use a pony keg as a tumbler. I need something about 2 gallons in size and have a top through which I can dump my rifle and pistol cases. Stainless steel would work best. Do you have any suggestions.

    • Chris April 5, 2019 @ 4:27pm

      Hi Ed,

      Our 2.5 gallon Cornelius keg would be the closest thing we sell to what you’re looking for. However, purchase at your own discretion, we don’t recommend using it for other purposes than kegging liquids, but that’s your choice. Cheers!

  • Robert O'Connell June 6, 2018 @ 11:21am

    What ever happened to the full keg?

    • Mark May 9, 2019 @ 6:55pm

      I was wondering that as well. Rolling those around could be dangerous at times.

  • Bob August 19, 2018 @ 12:09pm

    How many 12oz beers will I get from my 50L keg

    • Chris September 25, 2018 @ 10:36am

      Hi Bob,

      Per the chart, you should get about 140 12-oz beers from your 50-L keg. Cheers!

  • Ray October 19, 2018 @ 6:03pm

    This is going to my favorites bookmark.

  • mark louez December 2, 2018 @ 2:52am

    excelent, on my way to Ayres Rock and looking forward to a cold beer along the way, very helpful

  • Chay March 1, 2019 @ 1:40am

    I’m looking for a keg that I can fill with a batches cocktail or wine. What are those called and how much are they?

    • Chris March 1, 2019 @ 9:01am

      Hey Chay,

      What you’re referring to is a Cornelius keg. We do offer them in a variety of sizes, depending on what you’re looking for. A Cornelius keg can be filled with everything from coffee to home brew to wine or cocktails on tap. They are connected to the lines through a ball-lock system.

  • wallo July 26, 2019 @ 8:59am

    Thanks this was very useful! Hopefully it comes handy to someone!

  • Louis E. August 10, 2019 @ 3:31am

    The “half barrel keg” was traditionally called a “half keg”,not a “full keg” (which was a whole barrel,31.5 gallons,but hasn’t generally been available since 1984).

    Leaving aside the US/Imperial and wine/beer/ale barrel distinctions,the broader volume unit system is still complex,and based on an archaic unit called the tun (distinct from the ton with an O) which is 252 gallons.
    1/2 tun is a pipe (or butt),126 gallons.
    1/3 tun is a puncheon,84 gallons.
    1/4 tun is a hogshead,63 gallons (some have made beer barrels this size or the 54-gallon beer/ale version).
    1/6 tun is a tierce,42 gallons (this is the size in which petroleum barrels are measured).
    1/8 tun is the keg/barrel noted above.
    3.875 gallons is the classic pony keg (1/8 barrel rather than 1/6 or 1/4).
    A kilderkin is generally 18 gallons,half a kilderkin a firkin,half a firkin is a pin.
    Half a gallon is a pottle,and even that’s too much to drink at once!

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