1. Home
  2. Conversion Calculators
  3. Beer Volume
  4. Gallons
  5. Gallons to Forties

Convert Gallons of Beer to Forties

Enter the beer volume in gallons below to get the value converted to forties.

SWAP UNITS
Results in Forties:
Loading content.
1 gallon = 3.2 forties
Do you want to convert forties to gallons?

How to Convert Gallons to Forties

To convert a gallon measurement to a forty measurement, multiply the beer volume by the conversion ratio.

Since one gallon is equal to 3.2 forties, you can use this simple formula to convert:

forties = gallons × 3.2

The beer volume in forties is equal to the gallons multiplied by 3.2.

For example, here's how to convert 5 gallons to forties using the formula above.
5 gallons = (5 × 3.2) = 16 forties

Gallons and forties are both units used to measure beer volume. Keep reading to learn more about each unit of measure.

Gallons

The US gallon is a standard size equivalent to 128 fl. oz. of beer.

The gallon is a US customary unit of beer volume.

Forties

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.

Gallon to Forty Conversion Table

Gallon measurements converted to forties
Gallons Forties
1 3.2
2 6.4
3 9.6
4 12.8
5 16
6 19.2
7 22.4
8 25.6
9 28.8
10 32
11 35.2
12 38.4
13 41.6
14 44.8
15 48
16 51.2
17 54.4
18 57.6
19 60.8
20 64
21 67.2
22 70.4
23 73.6
24 76.8
25 80
26 83.2
27 86.4
28 89.6
29 92.8
30 96
31 99.2
32 102.4
33 105.6
34 108.8
35 112
36 115.2
37 118.4
38 121.6
39 124.8
40 128

More Gallon & Forty Conversions