Volume
gal (UK)tofl oz (US)
Convert imperial gallons (gal (UK)) to US fluid ounces (fl oz (US)).
Factor1 gal (UK) = 153.7216 fl oz (US)
Converter
gal (UK)
Accepts numbers or expressions, e.g. 150 + 14.7
Result
fl oz (US)
Rendered to 6 significant figures.
Formula
Formula
fl oz (US) = gal (UK) × 153.7216
Multiply any value in imperial gallons by 153.7216 to obtain the value in US fluid ounces.
Worked example
Convert 1 gal (UK) to fl oz (US).
- 01Start with 1 gal (UK).
- 02Multiply by the conversion factor: 1 × 153.7216 = 153.722 fl oz (US).
Result1 gal (UK) = 153.722 fl oz (US)
Conversion table
| gal (UK) | fl oz (US) |
|---|---|
| 1 | 153.72 |
| 2 | 307.44 |
| 5 | 768.61 |
| 10 | 1537.2 |
| 20 | 3074.4 |
| 50 | 7686.1 |
| 100 | 15372 |
| 200 | 30744 |
| 500 | 76861 |
| 1000 | 1.5372e+5 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from gal (UK) to fl oz (US)?
1 gal (UK) equals 153.7216 fl oz (US). To convert, multiply the value in imperial gallons by 153.7216.
How do I convert 1 gal (UK) to fl oz (US)?
1 gal (UK) = 153.722 fl oz (US). For any value, multiply by 153.7216.
How do I convert fl oz (US) back to gal (UK)?
Divide by the same factor — or equivalently, multiply by 0.006505267. So 1 fl oz (US) = 0.00650527 gal (UK).
When would I need to convert imperial gallon to US fluid ounce?
Volume conversions are used for tank sizing, batch calculations, and bridging between vendor specs (gallons, barrels, ft³) and process documentation (m³, litres).
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).