Gallon (US) to Cup (UK) Converter

Volume Converter

40 units available

Decimals:

From

To

13.322787

1 gal = 13.322787 cup (UK)

Formula:

cup (UK) = gal × 13.3227869541

With your value: 1 gal = 13.32278695 cup (UK)

How big is that?

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

Milk carton (1/3.8e+3 your value)0.000264 gal

Kitchen bucket (1/3.8e+2 your value)0.00264 gal

Car fuel tank (1/76 your value)0.0132 gal

Bathtub (1/19 your value)0.0528 gal

Hot tub (1/2.5 your value)0.396 gal

Your value1.00 gal

Other Gallon (US) to Cup (UK) conversions

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

Gallon (US) to Cup (UK) Conversion Table

Gallon (US) (gal)	Cup (UK) (cup (UK))
0.5	6.661393
1	13.322787
2	26.645574
5	66.613935
10	133.22787
15	199.841804
20	266.455739
25	333.069674
50	666.139348
100	1,332.278695
250	3,330.696739
500	6,661.393477
1000	13,322.786954

Cup (UK) to Gallon (US) Conversion Table

Cup (UK) (cup (UK))	Gallon (US) (gal)
0.5	0.03753
1	0.075059
2	0.150119
5	0.375297
10	0.750594
15	1.125891
20	1.501187
25	1.876484
50	3.752969
100	7.505937
250	18.764843
500	37.529685
1000	75.05937

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.

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

Cup (UK) (cup (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

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

To convert from Gallon (US) (gal) to Cup (UK) (cup (UK)), multiply the value by 13.3227869541.

Formula: cup (UK) = gal × 13.3227869541

Reverse: gal = cup (UK) × 0.0750593703

Step-by-Step Example

Start with your value in Gallon (US). For example: 5 gal
Multiply by the conversion factor: 5 x 13.3227869541
The result is: 66.613935 cup (UK)

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.

About Cup (UK)

The cup (uk) (cup (UK)) is a unit of volume and capacity. One cup (uk) equals 0.284130625 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.

Frequently Asked Questions

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

There are exactly 13.3227869541 Cup (UK) in 1 Gallon (US). This means the conversion factor from Gallon (US) to Cup (UK) is 13.3227869541.

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

The formula to convert Gallon (US) to Cup (UK) is: cup (UK) = gal × 13.3227869541. For example, to convert 10 Gallon (US) to Cup (UK), you would multiply 10 by 13.3227869541.

What is a Gallon (US)?