Convert volume units — liters, gallons, cups, milliliters, cubic meters, barrels and more.
| Unit | Name | Value |
|---|---|---|
| 0.001 gal(UK) | 0.153722 fl oz | |
| 0.01 gal(UK) | 1.53722 fl oz | |
| 0.1 gal(UK) | 15.3722 fl oz | |
| 1 gal(UK) | 153.722 fl oz | |
| 5 gal(UK) | 768.609 fl oz | |
| 10 gal(UK) | 1537.22 fl oz | |
| 50 gal(UK) | 7686.09 fl oz | |
| 100 gal(UK) | 15372.2 fl oz | |
| 1000 gal(UK) | 153722 fl oz |
Common uk gallon values converted to fluid ounce — factor: 1 gal(UK) = 153.7 fl oz
| UK Gallon (gal(UK)) | Fluid Ounce (fl oz) | Context |
|---|---|---|
| 0.0065 gal(UK) | 0.9992 fl oz | Tablespoon |
| 0.025 gal(UK) | 3.843 fl oz | Quarter cup |
| 0.05 gal(UK) | 7.686 fl oz | Cup |
| 0.125 gal(UK) | 19.22 fl oz | UK pint |
| 0.25 gal(UK) | 38.43 fl oz | UK quart |
| 0.5 gal(UK) | 76.86 fl oz | Half UK gallon |
| 1 gal(UK) | 153.7 fl oz | UK gallon |
| 2 gal(UK) | 307.4 fl oz | Two UK gallons |
| 5 gal(UK) | 768.6 fl oz | Jerrycan |
| 10 gal(UK) | 1,537 fl oz | 10-gallon drum |
| 20 gal(UK) | 3,074 fl oz | 20-gallon tank |
| 35 gal(UK) | 5,380 fl oz | UK oil barrel |
| 55 gal(UK) | 8,455 fl oz | Drum barrel |
| 100 gal(UK) | 1.537e+04 fl oz | Large drum |
| 1,000 gal(UK) | 1.537e+05 fl oz | Tank |
Converting uk gallon to fluid ounce comes up frequently in cooking, chemistry, medicine, and engineering. A recipe written in metric units may need to be adapted for a kitchen using fluid ounce, or a laboratory protocol may specify volumes in uk gallon that need to be measured with equipment calibrated in fluid ounce.
In everyday use, knowing that 5 gal(UK) = 768.6 fl oz and 10 gal(UK) = 1537 fl oz covers most common situations. For bulk calculations, 100 gal(UK) = 1.537e+04 fl oz is a useful anchor. The reverse conversion — fluid ounce back to uk gallon — uses the factor 0.006505, so 1 fl oz = 0.006505 gal(UK).
All conversions use the internationally recognized factor of exactly 1 gal(UK) = 153.7 fl oz. Calculations are performed in IEEE 754 double-precision floating point, giving accuracy to at least 8 significant figures — more than sufficient for any practical application.
Formula: Fluid Ounce = UK Gallon × 153.72174
Multiply any uk gallon value by 153.72174 to get fluid ounce. One uk gallon equals 153.72174 fl oz.
Reverse: UK Gallon = Fluid Ounce × 0.0065052606
1 gal(UK) = 153.72174 fl oz. Memorize this for instant mental estimates.
Use 153.7217 as a quick mental factor. Multiply your UK gallons value by this to estimate fluid ounces.
To verify: multiply your result by 0.0065052606 to recover the original gal(UK) value.
Calculates fuel economy in miles per Imperial gallon, the standard UK efficiency metric.
Orders bulk beer kegs rated in Imperial gallons and reconciles against pint servings.
Applies pesticides at rates specified in Imperial gallons per acre in legacy manuals.
Calculates boat fuel range using Imperial gallons for UK coastal navigation.
Converts UK heating oil deliveries between Imperial gallons and liters for EU reports.
References older British Pharmacopoeia formulations using Imperial gallon quantities.
The Imperial gallon was defined by the British Weights and Measures Act of 1824 as the volume of ten pounds of water at 62°F, later fixed to exactly 4.54609 liters in 1985.
UK gallons are still used in Britain for fuel pricing. Road signs show consumption in miles per Imperial gallon, making UK cars appear more fuel-efficient than identical US models.
Interesting fact: 1 Imperial gallon = 1.20095 US gallons. Confusing the two has caused real-world errors in cross-border fuel cost calculations.
The US fluid ounce is defined as 1/128 of a US gallon, exactly 29.5735 mL. The US and UK fl oz differ: the US is 29.57 mL while the Imperial fl oz is 28.41 mL.
Fluid ounces appear on every US beverage container: a soda can is 12 fl oz, a water bottle is 16.9 fl oz, and a US shot glass is 1.5 fl oz.
Interesting fact: Despite sharing the name 'ounce', the fluid ounce measures volume, not weight. One fl oz of water weighs about 1.04 oz, but one fl oz of honey weighs about 1.5 oz.