Quart (UK) to Gallon (US) Converter

Volume Converter

40 units available

Decimals:

From

To

0.300237

1 qt (UK) = 0.300237 gal

Formula:

gal = qt (UK) × 0.3002374814

With your value: 1 qt (UK) = 0.30023748 gal

How big is that?

Everyday references on a logarithmic scale, all expressed in quart (uk) so you can sanity-check the result.

Milk carton (1/1.1e+3 your value)0.000880 qt (UK)

Kitchen bucket (1/1.1e+2 your value)0.00880 qt (UK)

Car fuel tank (1/23 your value)0.0440 qt (UK)

Bathtub (1/5.7 your value)0.176 qt (UK)

Your value1.00 qt (UK)

Hot tub (1.3× your value)1.32 qt (UK)

Other Quart (UK) to Gallon (US) conversions

2 qt (UK) to gal 3 qt (UK) to gal 4 qt (UK) to gal 5 qt (UK) to gal 6 qt (UK) to gal 7 qt (UK) to gal 8 qt (UK) to gal

Quart (UK) to Gallon (US) Conversion Table

Quart (UK) (qt (UK))	Gallon (US) (gal)
0.5	0.150119
1	0.300237
2	0.600475
5	1.501187
10	3.002375
15	4.503562
20	6.00475
25	7.505937
50	15.011874
100	30.023748
250	75.05937
500	150.118741
1000	300.237481

Gallon (US) to Quart (UK) Conversion Table

Gallon (US) (gal)	Quart (UK) (qt (UK))
0.5	1.665348
1	3.330697
2	6.661393
5	16.653484
10	33.306967
15	49.960451
20	66.613935
25	83.267418
50	166.534837
100	333.069674
250	832.674185
500	1,665.348369
1000	3,330.696739

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Quart (UK) (qt (UK))

Volume

Exact conversion

Derived from the cubic metre. The litre is exactly 10⁻³ m³; US and imperial capacity units are exact multiples fixed by statute.

Source: NIST Special Publication 811, Guide for the Use of the International System of Units

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

Gallon (US) (gal)

Volume

Exact conversion

The US liquid gallon is exactly 231 cubic inches = 3.785 411 784 L.

Source: NIST Handbook 44, Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices

National Institute of Standards and Technology (US) · Reviewed 2026-07-01

How to Convert Quart (UK) to Gallon (US)

To convert from Quart (UK) (qt (UK)) to Gallon (US) (gal), multiply the value by 0.3002374814.

Formula: gal = qt (UK) × 0.3002374814

Reverse: qt (UK) = gal × 3.3306967385

Step-by-Step Example

Start with your value in Quart (UK). For example: 5 qt (UK)
Multiply by the conversion factor: 5 x 0.3002374814
The result is: 1.501187 gal

About Quart (UK)

The quart (uk) (qt (UK)) is a unit of volume and capacity. One quart (uk) equals 1.1365225 litres. UnitConvertLab converts it against every other volume unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: volume calculations, engineering and science, education.

About Gallon (US)

The US gallon equals approximately 3.785 liters and is the standard unit for fuel and large liquid volumes in the United States.

Fun Fact: The US gallon is about 20% smaller than the imperial (UK) gallon.

Common uses: fuel (US), beverages, swimming pools.

Frequently Asked Questions

How many Gallon (US) are in 1 Quart (UK)?

There are exactly 0.3002374814 Gallon (US) in 1 Quart (UK). This means the conversion factor from Quart (UK) to Gallon (US) is 0.3002374814.

What is the formula to convert Quart (UK) to Gallon (US)?

The formula to convert Quart (UK) to Gallon (US) is: gal = qt (UK) × 0.3002374814. For example, to convert 10 Quart (UK) to Gallon (US), you would multiply 10 by 0.3002374814.

What is a Quart (UK)?