Fl Oz to Gal
Convert Fluid Ounces to US Gallons
"Fl Oz to Gal" Calculator
How to Convert Fluid Ounces to Gallons
Fluid Ounces to Gallons Conversion Formula
To convert US fluid ounces to gallons, use this simple formula:
gallons = fluid ounces ÷ 128
By definition there are exactly 128 US fluid ounces in one US gallon, so one fluid ounce is 1/128 (0.0078125) of a gallon. Remember this is the US fluid ounce of volume, not the weight ounce.
Step-by-Step Volume Conversion Guide
- Take your volume in US fluid ounces
- Divide it by 128 (the number of fluid ounces in one gallon)
- Get your result in gallons
Common Fluid Ounces to Gallons Conversions
| Fluid Ounces (fl oz) | US Gallons (gal) |
|---|---|
| 16 fl oz | 0.125 gal |
| 32 fl oz | 0.25 gal |
| 48 fl oz | 0.375 gal |
| 64 fl oz | 0.5 gal |
| 96 fl oz | 0.75 gal |
| 128 fl oz | 1 gal |
| 192 fl oz | 1.5 gal |
| 256 fl oz | 2 gal |
Practical Applications of Fl Oz to Gallons Converter
- Beverages: Working out how many gallons a stack of drink bottles adds up to
- Fuel & fluids: Adding up small container volumes into gallons
- Cleaning: Diluting concentrates measured in fluid ounces per gallon
- Aquariums: Dosing treatments given as ounces per gallon of water
- Cooking: Scaling large-batch liquid recipes
History of the Fluid Ounce and Gallon
The US gallon descends from the English wine gallon of 231 cubic inches, and is divided into 4 quarts, 8 pints, or 128 fluid ounces. The US fluid ounce is therefore 1/128 of a gallon (29.5735 ml). These are units of volume and differ from the imperial (UK) gallon, which holds 160 imperial fluid ounces.
Quick Conversion Tips
For quick reference, remember: 128 fl oz = 1 gallon, 64 fl oz = ½ gallon and 32 fl oz = ¼ gallon (1 quart). To convert fluid ounces to gallons, divide by 128.
See Also
- Ml to Oz - Convert Milliliters to Fluid Ounces
- Oz to Ml - Convert Fluid Ounces to Milliliters
- Oz to Cups - Convert Fluid Ounces to Cups
- Cups to Oz - Convert Cups to Fluid Ounces
- Liters to Gallons - Convert Liters to US Gallons
- Gallons to Liters - Convert US Gallons to Liters
- Cups to Ml - Convert Cups to Milliliters
- Ml to Cups - Convert Milliliters to Cups
- Tablespoons to Cups - Convert Tablespoons to Cups
- Cups to Tablespoons - Convert Cups to Tablespoons
- Tsp to Ml - Convert Teaspoons to Milliliters
- Ml to Tsp - Convert Milliliters to Teaspoons
- Fl Oz to Liters - Convert Fluid Ounces to Liters
- Liters to Fl Oz - Convert Liters to Fluid Ounces
- Quarts to Liters - Convert US Quarts to Liters
- Liters to Quarts - Convert Liters to US Quarts
- Ml to L - Convert Milliliters to Liters
- L to Ml - Convert Liters to Milliliters
- Cups to L - Convert Cups to Liters
- L to Cups - Convert Liters to Cups
- How Many Fl Oz in a Gallon? - Convert US Gallons to Fluid Ounces
- Gal to Ml - Convert Gallons to Milliliters
- Ml to Gal - Convert Milliliters to Gallons
- Quarts to Gallons - Convert Quarts to Gallons
- Gallons to Quarts - Convert Gallons to Quarts
- Cc to Ml - Convert Cubic Centimeters to Milliliters
- Ml to Cc - Convert Milliliters to Cubic Centimeters
- L to UK Gallons - Convert Liters to UK Gallons
- UK Gallons to L - Convert UK Gallons to Liters
- L to Cubic Meters - Convert Liters to Cubic Meters
- Cubic Meters to L - Convert Cubic Meters to Liters
About "Fl Oz to Gal" Calculator
This converter will help you to convert Fluid Ounces to Gallons (fl oz to gal). One US gallon is equal to 128 US fluid ounces, so one fluid ounce is 0.0078125 gallons. For example, it can help you find out how many gallons is 64 fl oz? (The answer is: 0.5). Enter the number of fluid ounces (e.g. '64') and hit the 'Convert' button.
FAQ
How many gallons are in a fluid ounce?
One US fluid ounce is equal to 0.0078125 US gallons, since one gallon contains 128 fluid ounces.
What is the formula to convert fl oz to gallons?
To convert US fluid ounces to gallons, divide the fluid ounce value by 128. For example, 64 fl oz ÷ 128 = 0.5 gallons.
How many fluid ounces are in a gallon?
There are exactly 128 US fluid ounces in one US gallon. A half gallon is 64 fl oz and a quart is 32 fl oz.