Forties to Growlers Converter

Convert volume measurements from forties (40 oz bottles) to growlers (64 oz) quickly and accurately. Enter any forties value and get the equivalent in growlers.

forties
Result
0 growlers

Common Forties to Growlers Conversions

Forties Growlers (64 oz)
1 forty0.625 growlers
1.6 forties1 growler
2 forties1.25 growlers
4 forties2.5 growlers
5 forties3.125 growlers
8 forties5 growlers
10 forties6.25 growlers
16 forties10 growlers
20 forties12.5 growlers

How to Convert Forties to Growlers

Converting forties to growlers helps compare two popular beer container formats. A forty contains 40 fluid ounces of beer, while a standard growler holds 64 fluid ounces (half a gallon).

The Conversion Formula

The formula to convert forties to growlers is based on their fluid ounce values:

growlers = forties x (40 / 64)

This formula works because one forty equals 40 fluid ounces, and one growler equals 64 fluid ounces. The conversion factor is 0.625, meaning each forty is 5/8 of a growler.

Example 1: Converting 4 Forties to Growlers

growlers = 4 x (40 / 64)

growlers = 4 x 0.625

Result: 2.5 growlers

Example 2: Converting 8 Forties to Growlers

growlers = 8 x (40 / 64)

growlers = 8 x 0.625

Result: 5 growlers

What Is a Forty?

A forty (also written as "40" or "40 oz") is a glass or plastic bottle containing 40 fluid ounces of beer, approximately 1.18 liters. This bottle size became popular in the United States for malt liquor and certain beer brands, offering a large single-serving format.

What Is a Growler?

A growler is a reusable glass, ceramic, or stainless steel jug used to transport draft beer. The standard growler holds 64 fluid ounces (half a gallon or approximately 1.89 liters). Growlers are popular at craft breweries and taprooms, allowing customers to take fresh draft beer home. They're designed to be filled, sealed, and consumed within a few days to maintain freshness.

Why Convert Forties to Growlers?

This conversion is useful for:

Quick Reference

Key conversion facts: