UK gallon to US fluid ounce Converter
1 gal (UK) = 153.72159 fl oz — convert instantly with formula and table.
Use the converter above for an immediate result — it recalculates on every keystroke and works offline once the page has loaded.
Quick answer: one uk gallon equals 153.7216 US fluid ounces. So to convert UK gallons to US fluid ounces, multiply by 153.72159046.
How to convert UK gallons to US fluid ounces
US fluid ounces = UK gallons × 153.7215904646
The imperial (UK) gallon is 4.54609 liters — about 20% larger than the US gallon. Confusing the two is a classic source of fuel-economy errors.
The US fluid ounce is about 29.57 ml — slightly larger than the UK fluid ounce. Eight fluid ounces make a US cup.
UK gallon to US fluid ounce conversion table
| UK gallon (gal (UK)) | US fluid ounce (fl oz) |
|---|---|
| 0.01 gal (UK) | 1.5372 fl oz |
| 0.1 gal (UK) | 15.3722 fl oz |
| 0.25 gal (UK) | 38.4304 fl oz |
| 0.4 gal (UK) | 61.4886 fl oz |
| 0.75 gal (UK) | 115.2912 fl oz |
| 1.25 gal (UK) | 192.152 fl oz |
| 1.75 gal (UK) | 269.0128 fl oz |
| 2.5 gal (UK) | 384.304 fl oz |
| 3.5 gal (UK) | 538.0256 fl oz |
| 4.5 gal (UK) | 691.7472 fl oz |
| 6 gal (UK) | 922.3295 fl oz |
| 8 gal (UK) | 1,229.77 fl oz |
| 10 gal (UK) | 1,537.22 fl oz |
| 12 gal (UK) | 1,844.66 fl oz |
| 14 gal (UK) | 2,152.1 fl oz |
| 16 gal (UK) | 2,459.55 fl oz |
| 18 gal (UK) | 2,766.99 fl oz |
| 20 gal (UK) | 3,074.43 fl oz |
| 24 gal (UK) | 3,689.32 fl oz |
| 26 gal (UK) | 3,996.76 fl oz |
| 30 gal (UK) | 4,611.65 fl oz |
| 35 gal (UK) | 5,380.26 fl oz |
| 45 gal (UK) | 6,917.47 fl oz |
| 55 gal (UK) | 8,454.69 fl oz |
| 65 gal (UK) | 9,991.9 fl oz |
| 75 gal (UK) | 11,529.12 fl oz |
| 85 gal (UK) | 13,066.34 fl oz |
| 95 gal (UK) | 14,603.55 fl oz |
| 110 gal (UK) | 16,909.37 fl oz |
| 125 gal (UK) | 19,215.2 fl oz |
| 175 gal (UK) | 26,901.28 fl oz |
| 250 gal (UK) | 38,430.4 fl oz |
| 350 gal (UK) | 53,802.56 fl oz |
| 450 gal (UK) | 69,174.72 fl oz |
| 600 gal (UK) | 92,232.95 fl oz |
| 750 gal (UK) | 115,291.19 fl oz |
| 900 gal (UK) | 138,349.43 fl oz |
| 1,500 gal (UK) | 230,582.39 fl oz |
| 2,500 gal (UK) | 384,303.98 fl oz |
| 10,000 gal (UK) | 1,537,215.9 fl oz |
Need the opposite direction? Use the US fluid ounce to UK gallon converter, or read our complete guide to volume conversions for every formula in one place.
Frequently asked questions
How many US fluid ounces are in one uk gallon?
One uk gallon equals 153.7216 US fluid ounces. Multiply any uk gallon value by 153.72159046 to get US fluid ounces.
What is 10 UK gallons in US fluid ounces?
10 UK gallons equal 1,537.22 US fluid ounces (10 × 153.72159).
Is the uk gallon to us fluid ounce conversion exact?
The conversion factor used here (153.7215904646) is based on the internationally agreed definitions of both units, so results are exact up to rounding of the final decimal places.
Is my data stored when I use this converter?
No. The conversion runs entirely in your browser with JavaScript — nothing you type is sent to a server, logged or stored.