Convert Gallon (US) to Fluid Ounce (US)
Please provide values below to convert gallon (US) [gal (US)] to fluid ounce (US) [fl oz (US)]or vice versa.
Gallon (US)
Definition: A gallon is a unit of volume specifically regarding liquid capacity in both the US customary and imperial systems of measurement. The US gallon is defined as 231 cubic inches (3.785 liters). In contrastthe imperial gallonwhich is used in the United KingdomCanadaand some Caribbean nationsis defined as 4.54609 liters. In both systemsthe gallon is divided into four quarts. Quarts are then divided into two pints and pints are divided into two cups. A cup is comprised of two gillsmaking one gallon equal four quartseight pintssixteen cupsor thirty-two gills. Further differentiating the US and the imperial gallona US gill is divided into four fluid ounceswhile an imperial gallon is divided into five. A US fluid ounce is therefore 1/128 of a US gallon while an imperial fluid ounce is 1/160 of an imperial gallon.
History/origin: The term gallon most closely originates from "galon" in Old Northern French and developed as a system for measuring wine and beer in Englandresulting in measures such as the wine gallonale gallonand imperial gallon.
Current use: In the United States (US)gallons are often used for larger containerssuch as half gallon tubs of ice cream or one-gallon cartons of milk. Gallons are also widely used in fuel economy expression in the USas well as some of its territories. The imperial gallon is used even more sparingly than the US gallonwith most countries around the world using liters when referencing fuel.
Fluid ounce
Definition: A fluid ounce (symbol: fl oz) is a unit of volume in the imperial and United States customary systems of measurement. The US fluid ounce is 1/16 of a US fluid pintand 1/128 of a US liquid gallonwhich is equal to 29.57 mL. The imperial fluid ounce is 1/20 of an imperial pintand 1/160 of an imperial gallonwhich is equal to 28.4 mL.
History/origin: The fluid ounce was originally based on the volume occupied by one ounce (weight) of a given liquid such as wine or waterthus varying based on the system being used. In 1824the imperial gallon was defined as the volume of ten pounds of water at a temperature of 16.7°C. The imperial gallon's definition was later changed to be equal to 4.54609 litersmaking the imperial fluid ounce equal to exactly 28.4130625 mL.
The United States fluid ounce was initially based on the wine gallon used in England prior to 1824. After the adoption of the international inch in 1959the US fluid ounce became equal to exactly 29.5735295625 mL.
Current use: As the name indicatesthe fluid ounce is typically used as a measurement of liquid volume. It is mostly used in the United States and the United Kingdomas one of the many measurements of volume used.
Gallon (US) to Fluid Ounce (US) Conversion Table
| Gallon (US) [gal (US)] | Fluid Ounce (US) [fl Oz (US)] |
|---|---|
| 0.01 gal (US) | 1.28 fl oz (US) |
| 0.1 gal (US) | 12.8 fl oz (US) |
| 1 gal (US) | 128 fl oz (US) |
| 2 gal (US) | 256 fl oz (US) |
| 3 gal (US) | 384 fl oz (US) |
| 5 gal (US) | 640 fl oz (US) |
| 10 gal (US) | 1280 fl oz (US) |
| 20 gal (US) | 2560 fl oz (US) |
| 50 gal (US) | 6400 fl oz (US) |
| 100 gal (US) | 12800 fl oz (US) |
| 1000 gal (US) | 128000 fl oz (US) |
How to Convert Gallon (US) to Fluid Ounce (US)
1 gal (US) = 128 fl oz (US)
1 fl oz (US) = 0.0078125 gal (US)
Example: convert 15 gal (US) to fl oz (US):
15 gal (US) = 15 × 128 fl oz (US) = 1920 fl oz (US)