Convert Cups to UK Gallons
Convert Cups to UK Gallons instantly. 1 Cup (cup) equals 0.05204 UK Gallons (gal (UK)).
Cups to UK Gallons conversion table
| Cups (cup) | UK Gallons (gal (UK)) |
|---|---|
| 1 cup | 0.05204 gal (UK) |
| 2 cup | 0.1041 gal (UK) |
| 3 cup | 0.1561 gal (UK) |
| 5 cup | 0.2602 gal (UK) |
| 10 cup | 0.5204 gal (UK) |
| 20 cup | 1.0408 gal (UK) |
| 50 cup | 2.6021 gal (UK) |
| 100 cup | 5.2042 gal (UK) |
| 500 cup | 26.0211 gal (UK) |
| 1,000 cup | 52.0421 gal (UK) |
1 Cup = 0.05204 UK Gallons · multiply Cups by 0.05204
About converting Cups to UK Gallons
Cups (cup) and UK Gallons (gal (UK)) are both units of volume, so converting between them is a single multiplication: multiply your Cups figure by 0.05204. Ten Cups comes to 0.5204 UK Gallons, and a hundred works out at 5.2042 UK Gallons.
Rule of thumb: going from Cups to UK Gallons divides, so the figure always shrinks — it takes about 19.2152 Cups to make a single UK Gallon. If your answer came out bigger, you have the conversion the wrong way round.
What is a Cup?
The cup is a cooking unit and nothing else — no scientific or trade use — and it is dangerously ambiguous. The US customary cup in recipes is about 237 mL, the metric cup used in Australia and much of Europe is exactly 250 mL, and the US legal cup that nutrition labels are calculated against is 240 mL, different again from the one in the cookbook. Recipes almost never say which they mean. The problem compounds for dry goods, since a cup measures volume while baking actually depends on mass: how hard you pack the flour changes the answer.
What is an UK Gallon?
The imperial gallon is defined as exactly 4.54609 liters, but it started as something far more tangible: the volume occupied by ten pounds of water. Britain adopted it in the 1824 reform that swept away a tangle of older gallons — wine, ale and corn measures each had their own — and much of the Commonwealth followed. It is noticeably larger than the US gallon that America retained, so a British car advertised at 50 miles per gallon is genuinely more frugal than an American one quoting the same number. It survives today mainly in fuel-economy figures, since UK forecourts sell petrol by the liter.
To put both in perspective: a cup is the measure American recipes count flour in, while the UK gallon began as the volume of ten pounds of water.
The converter above updates as you type, and the table lists common values for quick reference. Need the opposite direction? Use the UK Gallons to Cups converter, or browse all Volume converters.
Frequently asked questions
How many UK Gallons are in one Cup?
There are 0.05204 UK Gallons in one Cup.
How do I convert Cups to UK Gallons?
Multiply the number of Cups by 0.05204. For example, 10 Cups = 0.5204 UK Gallons.
What is 100 Cups in UK Gallons?
100 Cups is equal to 5.2042 UK Gallons.
How do I convert UK Gallons to Cups?
Multiply the UK Gallons value by 19.2152 (or divide by 0.05204).
Is this Cups to UK Gallons conversion exact?
The definition is exact — Cups and UK Gallons are both fixed against the same base by international agreement — but the decimal shown here is rounded for readability, because the true ratio does not terminate. For engineering or scientific work, carry more decimal places than this page displays.
What is a Cup?
The cup is a cooking unit and nothing else — no scientific or trade use — and it is dangerously ambiguous. The US customary cup in recipes is about 237 mL, the metric cup used in Australia and much of Europe is exactly 250 mL, and the US legal cup that nutrition labels are calculated against is 240 mL, different again from the one in the cookbook. Recipes almost never say which they mean. The problem compounds for dry goods, since a cup measures volume while baking actually depends on mass: how hard you pack the flour changes the answer.
What is an UK Gallon?
The imperial gallon is defined as exactly 4.54609 liters, but it started as something far more tangible: the volume occupied by ten pounds of water. Britain adopted it in the 1824 reform that swept away a tangle of older gallons — wine, ale and corn measures each had their own — and much of the Commonwealth followed. It is noticeably larger than the US gallon that America retained, so a British car advertised at 50 miles per gallon is genuinely more frugal than an American one quoting the same number. It survives today mainly in fuel-economy figures, since UK forecourts sell petrol by the liter.