Convert Forties of Beer to Gallons - Toponlinecalculator.com

To convert a measurement in forties to a measurement in gallons, simply multiply the beer volume by the conversion ratio of 0.3125 gallons per forty.

Forties to Gallons Converter

Enter the beer volume in forties to convert to gallons.

By Joe Sexton

To convert a measurement in forties to a measurement in gallons, multiply the beer volume by the following conversion ratio: 0.3125 gallons/forty.

Since one forty is equal to 0.3125 gallons, you can use this simple formula to convert:

gallons = forties × 0.3125

The beer volume in gallons is equal to the beer volume in forties multiplied by 0.3125.

For example, here’s how to convert 5 forties to gallons using the formula above.

gallons = (5 forties × 0.3125) = 1.5625 gal

There are 0.3125 gallons in a forty, which is why we use this value in the formula above.

1 forties = 0.3125 gal

Table showing various forty measurements converted to gallons:

The forty is a US standard size bottle containing 40 fl. oz. of beer. It’s a common size bottle, though not always associated with high-quality beer.

The forty is a US customary unit of beer volume.

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

The gallon is a US customary unit of volume. Gallons can be abbreviated as gal; for example, 1 gallon can be written as 1 gal.