Gallons (uk) to Fluid ounces (us) Converter
Convert gallon (UK) to fluid ounce (US) instantly. Type a value below — the result updates as you type.
When you need to convert gallon (UK) to fluid ounce (US)
Volume conversions show up most in the kitchen and at the pump — scaling a recipe written for another country, dosing a liquid, or comparing fuel and drink sizes between metric and US/UK measures.
Typical values: 0.5 gal is about 76.8608 fl oz, and 5 gal works out to roughly 768.608 fl oz. Because the ratio is fixed at 153.7216, you can scale any amount linearly — doubling the gallons (UK) doubles the fluid ounces (US).
US and UK 'cups', 'pints' and 'gallons' differ, so always check which system a recipe or label uses before converting.
How to convert gallon (UK) to fluid ounce (US)
One gallon (UK) equals 153.7216 fluid ounces (US). To convert, multiply the number of gallons (UK) by 153.7216:
fluid ounces (US) = gallons (UK) × 153.7216
For example, 10 gallons (UK) × 153.7216 = 1537.22 fluid ounces (US).
Gallons (uk) to fluid ounces (US) conversion table
| Volume (gal) | Fluid ounces (us) (fl oz) |
|---|---|
| 1 gal | 153.7216 fl oz |
| 2 gal | 307.4432 fl oz |
| 3 gal | 461.1648 fl oz |
| 5 gal | 768.608 fl oz |
| 10 gal | 1537.22 fl oz |
| 20 gal | 3074.43 fl oz |
| 50 gal | 7686.08 fl oz |
| 100 gal | 15372.2 fl oz |
FAQ
How many fluid ounces (US) are in a gallon (UK)?
One gallon (UK) = 153.7216 fluid ounces (US).
How do I convert fluid ounces (US) back to gallons (UK)?
Divide by 153.7216, or use the fluid ounces (US) to gallons (UK) converter.