Imperial gallon to US cup Converter
Type a value — the answer appears instantly. 1 gal (UK) = 19.215 cup.
Reviewed by the OmniCalc teamMethod verified 2026-07-01
19.215 US cups
= 4.54609 L= 4,546.09 ml
equals 19.215 US cupsFormula: cup = gal (UK) × 19.215199
Imperial gallon to US cup formula
cup = gal (UK) × 19.215199
Convert 5 imperial gallons to US cups
- Start with 5 imperial gallons.
- Multiply by the conversion factor: 5 × 19.2152 = 96.076.
- So 5 gal (UK) = 96.076 cup.
Imperial gallon to US cup conversion table
| Imperial gallons (gal (UK)) | US cups (cup) |
|---|---|
| 0.01 gal (UK) | 0.19215 cup |
| 0.1 gal (UK) | 1.9215 cup |
| 0.25 gal (UK) | 4.8038 cup |
| 0.5 gal (UK) | 9.6076 cup |
| 1 gal (UK) | 19.215 cup |
| 2 gal (UK) | 38.43 cup |
| 3 gal (UK) | 57.646 cup |
| 4 gal (UK) | 76.861 cup |
| 5 gal (UK) | 96.076 cup |
| 6 gal (UK) | 115.29 cup |
| 7 gal (UK) | 134.51 cup |
| 8 gal (UK) | 153.72 cup |
| 9 gal (UK) | 172.94 cup |
| 10 gal (UK) | 192.15 cup |
| 15 gal (UK) | 288.23 cup |
| 20 gal (UK) | 384.3 cup |
| 25 gal (UK) | 480.38 cup |
| 30 gal (UK) | 576.46 cup |
| 40 gal (UK) | 768.61 cup |
| 50 gal (UK) | 960.76 cup |
| 75 gal (UK) | 1,441.1 cup |
| 100 gal (UK) | 1,921.5 cup |
| 250 gal (UK) | 4,803.8 cup |
| 500 gal (UK) | 9,607.6 cup |
| 1,000 gal (UK) | 19,215 cup |
| 5,000 gal (UK) | 96,076 cup |
| 10,000 gal (UK) | 192,150 cup |
Unit definitions
What is a imperial gallon?
The imperial (UK) gallon is defined as exactly 4.54609 litres. It is used for fuel economy and liquid volumes in the United Kingdom and some Commonwealth countries. It is larger than the US gallon.
What is a US cup?
The US customary cup is one sixteenth of a US gallon, about 236.59 millilitres. It is the standard volume measure in American home cooking and baking. It equals eight US fluid ounces.
Frequently asked questions
How many US cups are in one imperial gallon?
One imperial gallon equals 19.215 US cups (1 gal (UK) = 19.215 cup).
How do I convert imperial gallons to US cups?
Multiply the value in imperial gallons by 19.2152. For example, 10 gal (UK) × 19.2152 = 192.15 cup.
Which is bigger — a imperial gallon or a US cup?
A imperial gallon is bigger: one imperial gallon contains 19.215 US cups.
Is this imperial gallon to US cup converter free?
Yes — the converter is free, works offline once loaded, and computes instantly in your browser without sending your numbers to a server.
Conversion factors follow international definitions (SI / NIST). Last verified 2026-07-01.