Fluid Ounces to Gallons Converter
Enter the volume in fluid ounces below to convert it to gallons.
Result in Gallons:
Do you want to convert gallons to fluid ounces?
How to Convert Fluid Ounces to Gallons
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To convert a measurement in fluid ounces to a measurement in gallons, divide the volume by the following conversion ratio: 128 fluid ounces/gallon.
Since one gallon is equal to 128 fluid ounces, you can use this simple formula to convert:
gallons = fluid ounces ÷ 128
The volume in gallons is equal to the volume in fluid ounces divided by 128.
Fluid ounces and gallons are both units used to measure volume. Keep reading to learn more about each unit of measure.
What Is a Fluid Ounce?
The US fluid ounce is a unit of volume equal to 1/16 of a pint or 1/8 of a cup. The fluid ounce is sometimes referred to as just an "ounce" but should not be confused with the unit of weight. One fluid ounce is equal to approximately 29.5735 milliliters, but in nutrition labeling, one fluid ounce is rounded to exactly 30 milliliters.[1]
The fluid ounce is a US customary unit of volume. Fluid ounces can be abbreviated as fl oz, and are also sometimes abbreviated as oz fl. For example, 1 fluid ounce can be written as 1 fl oz or 1 oz fl.
Learn more about fluid ounces.
What Is a Gallon?
The US liquid gallon is a unit of fluid volume equal to four quarts, eight pints, or sixteen cups.[2] 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.
Learn more about gallons.
Fluid Ounce to Gallon Conversion Table
| Fluid Ounces | Gallons |
|---|---|
| 1 fl oz | 0.007812 gal |
| 2 fl oz | 0.015625 gal |
| 3 fl oz | 0.023437 gal |
| 4 fl oz | 0.03125 gal |
| 5 fl oz | 0.039062 gal |
| 6 fl oz | 0.046875 gal |
| 7 fl oz | 0.054687 gal |
| 8 fl oz | 0.0625 gal |
| 9 fl oz | 0.070312 gal |
| 10 fl oz | 0.078125 gal |
| 20 fl oz | 0.15625 gal |
| 30 fl oz | 0.234375 gal |
| 40 fl oz | 0.3125 gal |
| 50 fl oz | 0.390625 gal |
| 60 fl oz | 0.46875 gal |
| 70 fl oz | 0.546875 gal |
| 80 fl oz | 0.625 gal |
| 90 fl oz | 0.703125 gal |
| 100 fl oz | 0.78125 gal |
| 200 fl oz | 1.5625 gal |
| 300 fl oz | 2.3438 gal |
| 400 fl oz | 3.125 gal |
| 500 fl oz | 3.9063 gal |
| 600 fl oz | 4.6875 gal |
| 700 fl oz | 5.4688 gal |
| 800 fl oz | 6.25 gal |
| 900 fl oz | 7.0313 gal |
| 1,000 fl oz | 7.8125 gal |
References
- U.S. Food & Drug Administration, Guidance for Industry: Guidelines for Determining Metric Equivalents of Household Measures, https://www.fda.gov/regulatory-information/search-fda-guidance-documents/guidance-industry-guidelines-determining-metric-equivalents-household-measures
- 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
More Fluid Ounce & Gallon Conversions
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