Cup (US) to Gallon (UK) Converter
Convert Cup (US) (cup) to Gallon (UK) (gal (UK)) instantly. 1 cup = 0.052042 gal (UK).
Volume Converter
40 units available
1 cup = 0.052042 gal (UK)
Formula:
gal (UK) = cup × 0.0520421365With your value: 1 cup = 0.05204214 gal (UK)
How big is that?
Everyday references on a logarithmic scale, all expressed in cup (us) so you can sanity-check the result.
Other Cup (US) to Gallon (UK) conversions
Cup (US) to Gallon (UK) Conversion Table
| Cup (US) (cup) | Gallon (UK) (gal (UK)) |
|---|---|
| 0.5 | 0.026021 |
| 1 | 0.052042 |
| 2 | 0.104084 |
| 5 | 0.260211 |
| 10 | 0.520421 |
| 15 | 0.780632 |
| 20 | 1.040843 |
| 25 | 1.301053 |
| 50 | 2.602107 |
| 100 | 5.204214 |
| 250 | 13.010534 |
| 500 | 26.021068 |
| 1000 | 52.042137 |
Gallon (UK) to Cup (US) Conversion Table
| Gallon (UK) (gal (UK)) | Cup (US) (cup) |
|---|---|
| 0.5 | 9.607599 |
| 1 | 19.215199 |
| 2 | 38.430398 |
| 5 | 96.075994 |
| 10 | 192.151988 |
| 15 | 288.227982 |
| 20 | 384.303976 |
| 25 | 480.37997 |
| 50 | 960.75994 |
| 100 | 1,921.519881 |
| 250 | 4,803.799702 |
| 500 | 9,607.599404 |
| 1000 | 19,215.198808 |
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.
Cup (US) (cup)
Volume
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 (UK) (gal (UK))
Volume
The imperial gallon is exactly 4.546 09 L (Weights and Measures Act 1985).
National Institute of Standards and Technology (US) · Reviewed 2026-07-01
How to Convert Cup (US) to Gallon (UK)
To convert from Cup (US) (cup) to Gallon (UK) (gal (UK)), multiply the value by 0.0520421365.
Formula: gal (UK) = cup × 0.0520421365
Reverse: cup = gal (UK) × 19.2151988081
Step-by-Step Example
- Start with your value in Cup (US). For example: 5 cup
- Multiply by the conversion factor: 5 x 0.0520421365
- The result is: 0.260211 gal (UK)
About Cup (US)
The US cup equals approximately 236.6 mL and is a standard cooking measurement in the United States.
Common uses: baking, cooking, recipes.
About Gallon (UK)
The imperial gallon equals exactly 4.54609 litres, about 20% larger than the US gallon — a frequent source of fuel-economy confusion.
Common uses: UK fuel figures, brewing, older recipes.
Frequently Asked Questions
How many Gallon (UK) are in 1 Cup (US)?
There are exactly 0.0520421365 Gallon (UK) in 1 Cup (US). This means the conversion factor from Cup (US) to Gallon (UK) is 0.0520421365.
What is the formula to convert Cup (US) to Gallon (UK)?
The formula to convert Cup (US) to Gallon (UK) is: gal (UK) = cup × 0.0520421365. For example, to convert 10 Cup (US) to Gallon (UK), you would multiply 10 by 0.0520421365.
What is a Cup (US)?
The US cup equals approximately 236.6 mL and is a standard cooking measurement in the United States.
What is a Gallon (UK)?
The imperial gallon equals exactly 4.54609 litres, about 20% larger than the US gallon — a frequent source of fuel-economy confusion.
What are the common uses of Cup (US)?
The Cup (US) is commonly used in baking, cooking, recipes.
Related Volume Conversions
Cite this page
UnitConvertLab. (2026). Cup (US) to Gallon (UK) converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/cup_us-to-gallon_uk