Gallons to Ounces Conversion Calculator
Enter the volume in gallons below to calculate the weight in ounces.
How to Convert Gallons to Ounces
To convert a gallon measurement to an ounce measurement, multiply the volume by 133.526471 times the density of the ingredient or material.
You can use this simple formula to convert:
Thus, the volume in ounces is equal to the gallons multiplied by 133.526471 times the density of the ingredient or material.
This calculator converts to ounces in weight, if you're trying to convert to a volume measurement in fluid ounces try our gallons to fluid ounces calculator.
Gallons and ounces are both commonly used to measure cooking ingredients.
For cooking applications, most chefs suggest measuring dry ingredients by weight rather than volume to improve accuracy in the measurements. The density of dry ingredients can vary for a variety of reasons, such as compaction.
The best way to ensure an accurate conversion is to use a scale. When a scale is not available, a calculator like the one above is a good way to estimate the volume to weight conversion.
Keep reading to learn more about each unit of measure.
How Many Ounces are in a Gallon?
The actual weight of a gallon will vary depending on the density of the material. The table below shows how many ounces of various wet and dry ingredients are in a gallon.
|Volume in Gallons:||Weight in Ounces of:|
|Water||Milk||Cooking Oil||All Purpose Flour||Granulated Sugar|
|1/8 gal||16.69 oz||17.19 oz||14.69 oz||8.8294 oz||14.11 oz|
|1/4 gal||33.38 oz||34.38 oz||29.38 oz||17.66 oz||28.22 oz|
|1/3 gal||44.51 oz||45.84 oz||39.17 oz||23.55 oz||37.63 oz|
|1/2 gal||66.76 oz||68.77 oz||58.75 oz||35.32 oz||56.44 oz|
|2/3 gal||89.02 oz||91.69 oz||78.34 oz||47.09 oz||75.25 oz|
|3/4 gal||100.14 oz||103.15 oz||88.13 oz||52.98 oz||84.66 oz|
|1 gal||133.53 oz||137.53 oz||117.5 oz||70.64 oz||112.88 oz|
The US liquid gallon is a unit of fluid volume equal to four quarts, eight pints, or sixteen cups. The US liquid gallon should not be confused with the US dry gallon or the imperial gallon, which are different units of measure.
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.
The ounce is a US customary and imperial unit of weight. Ounces can be abbreviated as oz; for example, 1 ounce can be written as 1 oz.
- National Institute of Standards & Technology, Metric Cooking Resources, https://www.nist.gov/pml/owm/metric-cooking-resources
- National Institute of Standards and Technology, Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices, Handbook 44 - 2019 Edition, https://nvlpubs.nist.gov/nistpubs/hb/2019/NIST.HB.44-2019.pdf
- James Bucki, Troy Ounce vs. Ounce, The Spruce, https://www.thesprucecrafts.com/troy-ounce-vs-ounce-4588158