US Fluid Ounces to Imperial Gallons Converter
1 US fluid ounce ≈ 0.00650526707 imperial gallons
A unit of volume, unrelated to the ounce of mass.
1 US fluid ounce equals 0.00650527 imperial gallons
How to convert US fluid ounces to imperial gallons
Choose the named US, Imperial or metric unit before converting a recipe or container size. A US liquid gallon is 3.785411784 L; an Imperial gallon is 4.54609 L. Volume alone cannot give ingredient mass without density.
imp gal = fl oz × 0.006505267067One US fluid ounce is 0.006505267067 imperial gallons, so a single multiplication converts any value.
0.0650527 imp gal ≈ 10 × 0.006505267067A unit of volume, unrelated to the ounce of mass.
US fluid ounces to imperial gallons conversion table
Common values in US fluid ounces, converted to imperial gallons.
| US fluid ounces (fl oz) | Imperial gallons (imp gal) |
|---|---|
| 1 | 0.0065052671 |
| 2 | 0.013010534 |
| 3 | 0.019515801 |
| 4 | 0.026021068 |
| 5 | 0.032526335 |
| 10 | 0.065052671 |
| 20 | 0.13010534 |
| 25 | 0.16263168 |
| 50 | 0.32526335 |
| 100 | 0.65052671 |
| 250 | 1.6263168 |
| 500 | 3.2526335 |
| 1,000 | 6.5052671 |
About these units
US fluid ouncefl oz
One 128th of a US gallon: about 29.57 mL.
imperial gallonimp gal
The UK gallon: exactly 4.54609 litres.
Reference: UK Weights and Measures Act 1985.
Sources and precision
Table results are rounded to 8 significant digits; formula constants may be rounded to 10. Worked example answers use 6 significant digits. The converter starts at 6 significant digits and lets you change display precision. Calculations use the stored factors without intermediate rounding. Exact unit definitions do not make an input measurement more precise; conventional and measured factors follow the assumptions stated here.