Volume conversion
1 imperial gallon (imp gal) equals 153.721590464621 us fluid ounce (US fl oz). Enter any value below to convert from imp gal to US fl oz.
Enter a value and choose units. Results update instantly.
1 imp gal = 153.7215904646 US fl oz
| Unit | Value |
|---|---|
| Cubic meter m³ | 0.00454609 |
| Liter L | 4.54609 |
| Milliliter mL | 4,546.09 |
| Cubic centimeter cm³ | 4,546.09 |
| Cubic inch in³ | 277.4194327916 |
| Cubic foot ft³ | 0.1605436532 |
| US gallon US gal | 1.2009499255 |
| Imperial gallon imp gal | 1 |
| US quart US qt | 4.803799702 |
| US customary cup US cup | 19.2151988081 |
| US fluid ounce US fl oz | 153.7215904646 |
Formula
Use this relationship for a direct conversion:
2 imp gal = 307.4431809292 US fl oz.
US liquid and Imperial gallon definitions are treated separately and use their exact legal values.
Quick reference
| Imperial gallon (imp gal) | US fluid ounce (US fl oz) |
|---|---|
| 0.01 | 1.5372159046 |
| 0.1 | 15.3721590465 |
| 1 | 153.7215904646 |
| 2 | 307.4431809292 |
| 5 | 768.6079523231 |
| 10 | 1,537.2159046462 |
| 25 | 3,843.0397616155 |
| 50 | 7,686.0795232311 |
| 100 | 15,372.1590464621 |
| 1,000 | 153,721.5904646214 |
From unit
Exactly 4.54609 liters.
Symbol: imp gal
To unit
One 128th of a US liquid gallon.
Symbol: US fl oz
Keep converting
Source
Definitions are checked against NIST Handbook 44, Appendix C. Calculations use full internal precision before display rounding.
View the complete volume converterQuestions
Use the formula US fl oz = imp gal x 153.721590464621. 1 imperial gallon (imp gal) equals 153.721590464621 us fluid ounce (US fl oz).
Both unit definitions use exact factors. Only the displayed decimal may be rounded.
