20 US cups to Imperial gallons
Convert US cups to Imperial gallons instantly with this free US cups to Imperial gallons converter. Enter any value to get an accurate volume conversion, plus the formula, the conversion factor and a full reference table.
What is 20 US cups in Imperial gallons?
20 US cups are equal to 1.04084273 Imperial gallons.
20 ÷ 19.2151988 = 1.04084273 Imperial gallons
20 US cups = 1.040842731 Imperial gallons
US cups to Imperial gallons formula
imp gal = cup ÷ 19.2151988
The US cups to Imperial gallons conversion factor is 0.052042136539, which is exact by definition. 1 US cup = 0.052042136539 Imperial gallons, and 1 Imperial gallon = 19.2151988081 US cups.
Regional note. Gallons differ by region. A US liquid gallon is exactly 3.785411784 liters; an Imperial (UK) gallon is exactly 4.54609 liters — about 20% larger. This page uses the Imperial gallon.
Worked examples
- 2 US cups = 0.104084273 Imperial gallons — 2 ÷ 19.2151988 = 0.104084273 Imperial gallons
- 6 US cups = 0.312252819 Imperial gallons — 6 ÷ 19.2151988 = 0.312252819 Imperial gallons
- 10 US cups = 0.520421365 Imperial gallons — 10 ÷ 19.2151988 = 0.520421365 Imperial gallons
US cups to Imperial gallons conversion table
Every value below is calculated with the exact conversion factor and rounded for display.
| US cups (cup) | Imperial gallons (imp gal) |
|---|---|
| 1 cup | 0.05204214 imp gal |
| 2 cup | 0.10408427 imp gal |
| 3 cup | 0.15612641 imp gal |
| 4 cup | 0.20816855 imp gal |
| 5 cup | 0.26021068 imp gal |
| 6 cup | 0.31225282 imp gal |
| 7 cup | 0.36429496 imp gal |
| 8 cup | 0.41633709 imp gal |
| 9 cup | 0.46837923 imp gal |
| 10 cup | 0.52042137 imp gal |
| 12 cup | 0.62450564 imp gal |
| 15 cup | 0.78063205 imp gal |
| 20 cup | 1.0408427 imp gal |
| 25 cup | 1.3010534 imp gal |
| 30 cup | 1.5612641 imp gal |
| 50 cup | 2.6021068 imp gal |
| 75 cup | 3.9031602 imp gal |
| 100 cup | 5.2042137 imp gal |
| 500 cup | 26.021068 imp gal |
| 1,000 cup | 52.042137 imp gal |
Common US cups values
Related conversions
Frequently asked questions
- What is 1 US cup in Imperial gallons?
- 1 US cup is equal to 0.052042137 Imperial gallons.
- How many US cups are in one Imperial gallon?
- There are 19.2151988 US cups in 1 Imperial gallon.
- How do you convert US cups to Imperial gallons?
- Multiply the number of US cups by 0.052042137 — or use the formula imp gal = cup ÷ 19.2151988.
- What is 6 US cups in Imperial gallons?
- 6 US cups is 0.312252819 Imperial gallons. 6 ÷ 19.2151988 = 0.312252819 Imperial gallons.
- Is the US cups to Imperial gallons conversion exact?
- Yes. The relationship is fixed by definition, so 0.052042136539 is an exact conversion factor — only the displayed result is rounded.
- Does this use US or Imperial Imperial gallons?
- Gallons differ by region. A US liquid gallon is exactly 3.785411784 liters; an Imperial (UK) gallon is exactly 4.54609 liters — about 20% larger. This page uses the Imperial gallon.