Imperial gallons to US fluid ounces
Convert imperial gallons to us fluid ounces (imp gal to US fl oz). 1 imp gal = 153.721590465 US fl oz. Use the calculator, formula and conversion table.
How to convert imperial gallons to us fluid ounces
Multiply the amount in imperial gallons by 153.721590465 to get us fluid ounces. The displayed factor and results are rounded to 12 significant digits.
US fl oz = imp gal × 153.721590465Worked example
1 imp gal = 153.721590465 US fl oz. Change the amount in the calculator above to use your own value.
Units and assumptions
Units are labelled explicitly: US customary liquid cups and gallons differ from imperial units. One litre is 1,000 millilitres. This converts volume only; mass conversions need a density.
Calculator results use floating-point arithmetic and are rounded for display. The reference table below uses up to 12 significant digits.
Imperial gallons to US fluid ounces table
| Imperial gallons (imp gal) | US fluid ounces (US fl oz) |
|---|---|
| 0 | 0 |
| 1 | 153.721590465 |
| 5 | 768.607952323 |
| 10 | 1,537.21590465 |
| 25 | 3,843.03976162 |
| 100 | 15,372.1590465 |
| 1,000 | 153,721.590465 |
About this conversion
What is the formula for imperial gallons to us fluid ounces?
US fl oz = imp gal × 153.721590465. Multiply the amount in imperial gallons by 153.721590465 to get us fluid ounces. The displayed factor and results are rounded to 12 significant digits.
How do I convert back to imperial gallons?
Use the us fluid ounces to imperial gallons calculator to reverse this conversion. You can also use Swap units in the calculator above.
Can I use a different pair of units?
Choose another unit in the calculator, or open the volume converter to browse all supported pairs.