Online calculator to convert US fluid ounces to US gallons (US fl oz to US gal) with formulas, examples, and tables. Our conversions provide a quick and easy way to convert between Volume units.
Conversion Calculator
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Convert US fl oz to US gallons
TIP: If the result of your conversion is 0, try increasing the "Decimals".
Conversion Definitions
The following is a list of definitions relating to conversions between US fluid ounces and US gallons.
What is a US fluid ounce (US fl oz)?
A US fluid ounce is a unit of volume in US Customary Units. The symbol for US fluid ounce is US fl oz. There are 128 US fluid ounces in a US gallon.
What is a US gallon (US gal)?
A US gallon is a unit of volume in US Customary Units. The symbol for US gallon is US gal. There are 0.0078125 US gallons in a US fluid ounce.
Conversion Formula
Let's take a closer look at the conversion formula so that you can do these conversions yourself with a calculator or with an old-fashioned pencil and paper.
The formula to convert from US fl oz to US gal is:
US gal = US fl oz ÷ 128
Conversion Example
Next, let's look at an example showing the work and calculations that are involved in converting from US fluid ounces to US gallons (US fl oz to US gal).
US Fluid Ounce to US Gallon Conversion Example
Task: Convert 250 US fluid ounces to US gallons (show work) Formula: US fl oz ÷ 128 = US gal Calculations: 250 US fl oz ÷ 128 = 1.953125 US gal Result: 250 US fl oz is equal to 1.953125 US gal
Conversion Table
For quick reference purposes, below is a conversion table that you can use to convert from US fl oz to US gal.
US Fluid Ounces to US Gallons Conversion Chart
| US fluid ounces (US fl oz) | US gallons (US gal) |
|---|---|
| 1 US fl oz | 0.0078125 US gal |
| 2 US fl oz | 0.015625 US gal |
| 3 US fl oz | 0.0234375 US gal |
| 4 US fl oz | 0.03125 US gal |
| 5 US fl oz | 0.0390625 US gal |
| 6 US fl oz | 0.046875 US gal |
| 7 US fl oz | 0.0546875 US gal |
| 8 US fl oz | 0.0625 US gal |
| 9 US fl oz | 0.0703125 US gal |
| 10 US fl oz | 0.078125 US gal |
| 20 US fl oz | 0.15625 US gal |
| 30 US fl oz | 0.234375 US gal |
| 40 US fl oz | 0.3125 US gal |
| 50 US fl oz | 0.390625 US gal |
| 75 US fl oz | 0.5859375 US gal |
| 100 US fl oz | 0.78125 US gal |
| 250 US fl oz | 1.953125 US gal |
| 500 US fl oz | 3.90625 US gal |
| 750 US fl oz | 5.859375 US gal |
| 1,000 US fl oz | 7.8125 US gal |
| 2,500 US fl oz | 19.53125 US gal |
| 5,000 US fl oz | 39.0625 US gal |
| 7,500 US fl oz | 58.59375 US gal |
| 10,000 US fl oz | 78.125 US gal |
| 25,000 US fl oz | 195.3125 US gal |
| 50,000 US fl oz | 390.625 US gal |
| 75,000 US fl oz | 585.9375 US gal |
| 100,000 US fl oz | 781.25 US gal |
| 250,000 US fl oz | 1,953.125 US gal |
Related Units
The following tables provide a summary of the Volume units (both Fluid Volume units and Cubic Volume units) within their respective measurement systems.
Fluid Volume Units
| Unit | Symbol | Measurement System |
|---|---|---|
| US teaspoons | US tsp | US Customary Units |
| US tablespoons | US tbsp | US Customary Units |
| US fluid ounces | US fl oz | US Customary Units |
| US cups | US cup | US Customary Units |
| US pints | US pt | US Customary Units |
| US quarts | US qt | US Customary Units |
| US gallons | US gal | US Customary Units |
| Imperial teaspoons | Imperial tsp | Imperial System |
| Imperial tablespoons | Imperial tbsp | Imperial System |
| Imperial fluid ounces | Imperial fl oz | Imperial System |
| Imperial pints | Imperial pt | Imperial System |
| Imperial quarts | Imperial qt | Imperial System |
| Imperial gallons | Imperial gal | Imperial System |
| nanoliters | nL | Metric System |
| microliters | μL | Metric System |
| milliliters | mL | Metric System |
| centiliters | cL | Metric System |
| deciliters | dL | Metric System |
| liters | L | Metric System |
| decaliters | daL | Metric System |
| hectoliters | hL | Metric System |
| kiloliters | kL | Metric System |
| megaliters | ML | Metric System |
Note: There is a difference between US Customary Units and the Imperial System for volume conversions. The US gallon contains 128 US fluid ounces, whereas the Imperial gallon contains 160 Imperial fluid ounces.
Cubic Volume Units
| Unit | Symbol | Measurement System |
|---|---|---|
| cubic inches | in3 | US Customary Units/Imperial System |
| cubic feet | ft3 | US Customary Units/Imperial System |
| cubic yards | yd3 | US Customary Units/Imperial System |
| cubic miles | mi3 | US Customary Units/Imperial System |
| cubic millimeters | mm3 | Metric System |
| cubic centimeters | cm3 | Metric System |
| cubic decimeters | dm3 | Metric System |
| cubic meters | m3 | Metric System |
| cubic decameter | dam3 | Metric System |
| cubic kilometer | km3 | Metric System |
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