Convert US fluid ounces to imperial gallons
1 US fluid ounce = 0.006505267 imperial gallons · imp gal = fl oz ÷ 153.7215905
When you need this conversion
This conversion goes from US fluid ounces, used for drinks and recipe liquids, to imperial gallons, the UK volume unit about 20 percent larger than a US gallon. Both measure the same physical quantity, so the conversion is exact — the difference is which unit your source, tool, or region happens to use.
US fluid ounces to imperial gallons conversion table
| US fluid ounces (fl oz) | Imperial gallons (imp gal) |
|---|---|
| 1 fl oz | 0.006505267 imp gal |
| 2 fl oz | 0.013011 imp gal |
| 3 fl oz | 0.019516 imp gal |
| 5 fl oz | 0.032526 imp gal |
| 10 fl oz | 0.065053 imp gal |
| 15 fl oz | 0.097579 imp gal |
| 20 fl oz | 0.130105 imp gal |
| 25 fl oz | 0.162632 imp gal |
| 50 fl oz | 0.325263 imp gal |
| 75 fl oz | 0.487895 imp gal |
| 100 fl oz | 0.650527 imp gal |
| 250 fl oz | 1.6263 imp gal |
| 500 fl oz | 3.2526 imp gal |
| 1,000 fl oz | 6.5053 imp gal |
The formula
imp gal = fl oz ÷ 153.7215905Because both units measure volume, the conversion is a single multiplication by a fixed factor. That factor never changes, so the result is exact.
Convert the other way
Imperial gallons to US fluid ounces →Related volume conversions
- US fluid ounces to milliliters
- Milliliters to US cups
- Milliliters to US fluid ounces
- Liters to cubic meters
- Liters to US gallons
- Cubic meters to liters
- Cubic meters to cubic feet
- Cubic feet to cubic meters
- US gallons to liters
- US cups to milliliters
- Milliliters to imperial gallons
- Liters to imperial gallons
Frequently asked questions
- How many imperial gallons are in a US fluid ounce?
- There are 0.006505267 imperial gallons in 1 US fluid ounce. The formula is imp gal = fl oz ÷ 153.7215905.
- How do you convert US fluid ounces to imperial gallons?
- Use the formula imp gal = fl oz ÷ 153.7215905. For example, 10 US fluid ounces equals 0.065053 imperial gallons.
- Is the US fluid ounces to imperial gallons conversion exact?
- Yes. US fluid ounces and imperial gallons are both units of volume, related by an exact defined factor. Displayed results are rounded for readability.
- What is fl oz short for?
- fl oz is the standard symbol for US fluid ounce. imp gal is the symbol for imperial gallon.