🧪 gal(UK) to qt — UK Gallon to US Quart Converter

Convert volume units — liters, gallons, cups, milliliters, cubic meters, pints, quarts.

1 unit =
From
To
Formula 1 gal(UK) = 4.8037994 qt
UnitNameValue
L Liter 4.54609
mL Milliliter 4546.09
Cubic Meter 0.00454609
gal(US) US Gallon 1.2009505
qt US Quart 4.8037994
pt US Pint 9.607609
cup US Cup 19.215218
fl oz Fluid Ounce 153.72174
Last updated: March 2026

UK Gallon to US Quart Conversion Table

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 qtTablespoon
0.025 gal(UK)0.1201 qtQuarter cup
0.05 gal(UK)0.2402 qtCup
0.125 gal(UK)0.6005 qtUK pint
0.25 gal(UK)1.201 qtUK quart
0.5 gal(UK)2.402 qtHalf UK gallon
1 gal(UK)4.804 qtUK gallon
2 gal(UK)9.608 qtTwo UK gallons
5 gal(UK)24.02 qtJerrycan
10 gal(UK)48.04 qt10-gallon drum
20 gal(UK)96.08 qt20-gallon tank
35 gal(UK)168.1 qtUK oil barrel
55 gal(UK)264.2 qtDrum barrel
100 gal(UK)480.4 qtLarge drum
1,000 gal(UK)4,804 qtTank

About UK Gallon to US Quart Conversion

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.

Quick Answer

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

Worked Examples

One UK gallon
4.804 gal(UK) × 4.8037994 = 23.077452 qt
1 UK gallon = 4.804 US quarts.
One UK gallon (reverse)
1 gal(UK) × 4.8037994 = 4.8037994 qt
1 UK gal = 4.804 US quarts.
5 UK gallons
5 gal(UK) × 4.8037994 = 24.018997 qt
5 UK gal = 24.02 US quarts.
Half UK gallon
0.5 gal(UK) × 4.8037994 = 2.4018997 qt
0.5 UK gal = 2.402 US quarts.

Mental Math Tricks

Exact factor

1 gal(UK) = 4.8037994 qt. Memorize this for instant mental estimates.

Rounded shortcut

Use 4.8038 as a quick mental factor. Multiply your UK gallons value by this to estimate US quarts.

Reverse check

To verify: multiply your result by 0.20816856 to recover the original gal(UK) value.

Who Uses This Conversion?

UK Driver

Calculates fuel economy in miles per Imperial gallon, the standard UK efficiency metric.

UK Pub Landlord

Orders bulk beer kegs rated in Imperial gallons and reconciles against pint servings.

UK Farmer

Applies pesticides at rates specified in Imperial gallons per acre in legacy manuals.

Marine Engineer

Calculates boat fuel range using Imperial gallons for UK coastal navigation.

Energy Analyst

Converts UK heating oil deliveries between Imperial gallons and liters for EU reports.

Chemist

References older British Pharmacopoeia formulations using Imperial gallon quantities.

Frequently Asked Questions

About UK Gallon and US Quart

UK Gallon (gal(UK))

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.

US Quart (qt)

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.