Convert volume units — liters, gallons, cups, milliliters, cubic meters, barrels and more.
| Unit | Name | Value |
|---|---|---|
| 0.001 gal(UK) | 0.0048038 qt | |
| 0.01 gal(UK) | 0.048038 qt | |
| 0.1 gal(UK) | 0.48038 qt | |
| 1 gal(UK) | 4.8038 qt | |
| 5 gal(UK) | 24.019 qt | |
| 10 gal(UK) | 48.038 qt | |
| 50 gal(UK) | 240.19 qt | |
| 100 gal(UK) | 480.38 qt | |
| 1000 gal(UK) | 4803.8 qt |
Common uk gallon values converted to us quart — factor: 1 gal(UK) = 4.804 qt
| UK Gallon (gal(UK)) | US Quart (qt) | Context |
|---|---|---|
| 0.0065 gal(UK) | 0.03122 qt | Tablespoon |
| 0.025 gal(UK) | 0.1201 qt | Quarter cup |
| 0.05 gal(UK) | 0.2402 qt | Cup |
| 0.125 gal(UK) | 0.6005 qt | UK pint |
| 0.25 gal(UK) | 1.201 qt | UK quart |
| 0.5 gal(UK) | 2.402 qt | Half UK gallon |
| 1 gal(UK) | 4.804 qt | UK gallon |
| 2 gal(UK) | 9.608 qt | Two UK gallons |
| 5 gal(UK) | 24.02 qt | Jerrycan |
| 10 gal(UK) | 48.04 qt | 10-gallon drum |
| 20 gal(UK) | 96.08 qt | 20-gallon tank |
| 35 gal(UK) | 168.1 qt | UK oil barrel |
| 55 gal(UK) | 264.2 qt | Drum barrel |
| 100 gal(UK) | 480.4 qt | Large drum |
| 1,000 gal(UK) | 4,804 qt | Tank |
Converting uk gallon to us quart comes up frequently in cooking, chemistry, medicine, and engineering. A recipe written in metric units may need to be adapted for a kitchen using us quart, or a laboratory protocol may specify volumes in uk gallon that need to be measured with equipment calibrated in us quart.
In everyday use, knowing that 5 gal(UK) = 24.02 qt and 10 gal(UK) = 48.04 qt covers most common situations. For bulk calculations, 100 gal(UK) = 480.4 qt is a useful anchor. The reverse conversion — us quart back to uk gallon — uses the factor 0.2082, so 1 qt = 0.2082 gal(UK).
All conversions use the internationally recognized factor of exactly 1 gal(UK) = 4.804 qt. 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: US Quart = UK Gallon × 4.8037994
Multiply any uk gallon value by 4.8037994 to get us quart. One uk gallon equals 4.8037994 qt.
Reverse: UK Gallon = US Quart × 0.20816856
1 gal(UK) = 4.8037994 qt. Memorize this for instant mental estimates.
Use 4.8038 as a quick mental factor. Multiply your UK gallons value by this to estimate US quarts.
To verify: multiply your result by 0.20816856 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 liquid quart is one-quarter of a US gallon, equal to 946.353 mL. The word 'quart' comes from Old French quarte (fourth part), dating to medieval England.
Quarts are standard in American cooking and food packaging: motor oil, paint, cream, and ice cream are commonly sold in quart containers.
Interesting fact: The US quart and the Imperial quart differ significantly — the Imperial quart is 1.136 liters versus 0.946 liters for the US quart.