Convert imperial gallon to US fluid ounce
1 imp gal = 153.7215905 fl oz
1 imp gal = 154 fl oz
1 imp gal in every volume unit
| milliliter | 4,550 mL |
| centiliter | 455 cL |
| liter | 4.55 L |
| cubic meter | 0.00455 m³ |
| cubic inch | 277 in³ |
| cubic foot | 0.161 ft³ |
| US fluid ounce | 154 fl oz |
| US pint | 9.61 pt |
| US quart | 4.8 qt |
| US gallon | 1.2 gal |
| imperial gallon | 1 imp gal |
| cubic yard | 0.00595 yd³ |
| acre-foot | 0.00000369 ac·ft |
How the conversion works
Multiply by 153.7215905 to go from imperial gallon to US fluid ounce, or divide by it to go back. Every conversion on this site routes through the SI value (m³) rather than a table of pairwise factors, so a round-trip returns exactly what you started with.
Going the other way? US fluid ounce to imperial gallon — 1 fl oz = 0.006505267067 imp gal.
imperial gallon to US fluid ounce — common values
| 1 imp gal | 153.72159 fl oz |
| 2 imp gal | 307.44318 fl oz |
| 3 imp gal | 461.16477 fl oz |
| 5 imp gal | 768.60795 fl oz |
| 10 imp gal | 1,537.2159 fl oz |
| 15 imp gal | 2,305.8239 fl oz |
| 20 imp gal | 3,074.4318 fl oz |
| 25 imp gal | 3,843.0398 fl oz |
| 50 imp gal | 7,686.0795 fl oz |
| 75 imp gal | 11,529.119 fl oz |
| 100 imp gal | 15,372.159 fl oz |
| 250 imp gal | 38,430.398 fl oz |
| 500 imp gal | 76,860.795 fl oz |
| 1000 imp gal | 153,721.59 fl oz |
Other volume conversions
mL → fl ozL → fl ozm³ → fl ozgal → fl ozimp gal → mLimp gal → Limp gal → m³imp gal → galSolvers that use volume