Convert Forties to Half Barrel Kegs

Enter the beer volume in forties below to get the value converted to half barrel kegs.

Results in Half Barrel Kegs:
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1 forty = 0.020161 half barrel kegs

How to Convert Forties to Half Barrel Kegs

To convert a forty measurement to a half barrel keg measurement, multiply the beer volume by the conversion ratio. One forty is equal to 0.020161 half barrel kegs, so use this simple formula to convert:

half barrel kegs = forties × 0.020161

The beer volume in half barrel kegs is equal to the forties multiplied by 0.020161.

For example, here's how to convert 5 forties to half barrel kegs using the formula above.
5 forties = (5 × 0.020161) = 0.100806 half barrel kegs

Forties and half barrel kegs are both units used to measure beer volume. Keep reading to learn more about each unit of measure.


The forty is a US standard size bottle containing a 40 fl. oz. of beer. This size bottle is commonly associated with lower quality beer, but that is not always the case.

The forty is a US customary unit of beer volume.

Half Barrel Kegs

The half-barrel keg is a keg equal to one-half the volume of a standard US beer barrel. A half-barrel keg contains 1984 fl. oz. of beer, or just over 165 12 fl. oz. beers.

The half barrel keg is a US customary unit of beer volume. A half barrel keg is sometimes also referred to as a full sized keg.

Forty Measurements and Equivalent Half Barrel Keg Conversions

Common forty values converted to the equivalent half barrel keg value
Forties Half Barrel Kegs
1 0.020161
2 0.040323
3 0.060484
4 0.080645
5 0.100806
6 0.120968
7 0.141129
8 0.16129
9 0.181452
10 0.201613
11 0.221774
12 0.241935
13 0.262097
14 0.282258
15 0.302419
16 0.322581
17 0.342742
18 0.362903
19 0.383065
20 0.403226
21 0.423387
22 0.443548
23 0.46371
24 0.483871
25 0.504032
26 0.524194
27 0.544355
28 0.564516
29 0.584677
30 0.604839
31 0.625
32 0.645161
33 0.665323
34 0.685484
35 0.705645
36 0.725806
37 0.745968
38 0.766129
39 0.78629
40 0.806452

More Forty Beer Volume Conversions

Convert to Beer Barrels
1 forty is equal to 0.010081 beer barrels
Convert to Beers
1 forty is equal to 3.333333 beers
Convert to Bombers
1 forty is equal to 1.818182 bombers
Convert to Cases
1 forty is equal to 0.138889 cases
Convert to Gallons
1 forty is equal to 0.3125 gallons
Convert to Growlers
1 forty is equal to 0.625 growlers
Convert to Quarter Barrel Kegs
1 forty is equal to 0.040323 quarter barrel kegs
Convert to Liters
1 forty is equal to 1.182942 liters
Convert to Fluid Ounces
1 forty is equal to 40 fluid ounces
Convert to Pints
1 forty is equal to 2.5 pints
Convert to Quarts
1 forty is equal to 1.25 quarts
Convert to Six Packs
1 forty is equal to 0.555556 six packs

Unit of Measurement Conversion Made Easy!

There are thousands of units of measure in use across the globe, and converting from one to another can be very difficult since each conversion requires a different formula to derive the result. Our unit of measurement conversion tools are meant to be dead easy. We break the mold of the typical dry and complicated experience. In addition to converting from one measurement to another, we provide the formula so you can see how the conversion is done, use it on you’re own calculator if you need to!

Convert units of length, weight, volume, and area between imperial and metric measures

Understanding the Metric System

The metric system makes it relatively easy to convert from one metric unit to another metric unit. The metric system uses a base unit, think meters or grams, and a prefix such as kilo or milli. The prefixes differ from the base units by differing powers of 10. So to convert within the metric system it’s usually a matter of multiplying or dividing by one of the powers of 10.

Here is a list of some of the common metric prefixes:

  • “kilo” – 1,000x larger
  • “hecto” – 100x larger
  • “deca” – 10x larger
  • “deci” – 10x smaller
  • “centi” – 100x smaller
  • “milli” – 1,000x smaller

There is a helpful mnemonic for remembering the prefixes: “King Henry Died Until Drinking Chocolate Milk.”
The u in Until refers to the base unit.