3 US cup to imp gal — 3 US cups in Imperial gallons
Exact 3 ÷ 19.215199 = 0.15612641
3 US cups in other units
| Millilitres | 709.76471 | mL |
|---|---|---|
| Litres | 0.70976471 | L |
| Cubic metres | 0.00070976471 | m³ |
| US teaspoons | 144 | tsp |
| US tablespoons | 48 | tbsp |
| US fluid ounces | 24 | US fl oz |
| US pints | 1.5 | US pt |
| US quarts | 0.75 | US qt |
| US gallons | 0.1875 | US gal |
| Imperial fluid ounces | 24.980226 | imp fl oz |
| Imperial pints | 1.249011 | imp pt |
| Imperial gallons | 0.15612641 | imp gal |
| Cubic feet | 0.0250651 | ft³ |
| Cubic inches | 43.3125 | in³ |
| Oil barrels | 0.004464285714 | bbl |
US cup to imp gal at a glance
| US cups | Imperial gallons |
|---|---|
| 1 US cup | 0.05204214 imp gal |
| 2 US cup | 0.10408427 imp gal |
| 3 US cup | 0.15612641 imp gal |
| 5 US cup | 0.26021068 imp gal |
| 10 US cup | 0.52042137 imp gal |
| 20 US cup | 1.040843 imp gal |
| 25 US cup | 1.301053 imp gal |
| 50 US cup | 2.602107 imp gal |
| 100 US cup | 5.204214 imp gal |
| 250 US cup | 13.010534 imp gal |
| 500 US cup | 26.021068 imp gal |
| 1,000 US cup | 52.042137 imp gal |
How to convert US cups to Imperial gallons
Multiply by 0.05204214 — one US cup is 0.05204214 Imperial gallons. That factor is exact: it comes from the definition of the units rather than from a measurement, so it will not change and does not need rounding.
Working 3 ÷ 19.215199 = 0.15612641
What these units are
The US cup and the Imperial gallon are covered in the volume unit guide, along with every other unit on this page.
Questions
How many Imperial gallons are in a US cup?
One US cup is 0.05204214 Imperial gallons. This figure is exact — it comes from the definition of the unit, not a measurement.
What is 3 US cups in Imperial gallons?
3 US cups is 0.15612641 Imperial gallons. The working is 3 ÷ 19.215199 = 0.15612641.
Is a gallon the same in the US and the UK?
No. A US gallon is 3.785411784 litres; an Imperial gallon is 4.54609 litres. The Imperial one is about 20% larger, which is why US and UK fuel economy figures for the same car look different.
Which pint does a recipe mean?
Follow the recipe's origin. A US pint is 16 US fluid ounces, roughly 473 mL. An Imperial pint is 20 Imperial fluid ounces, roughly 568 mL. A British pint of milk is noticeably more than an American one.
Can I convert litres to kilograms here?
Not directly — that depends on what you are measuring. Volume becomes mass only once you know the density. Water is the convenient case: one litre is almost exactly one kilogram. Oil, flour and alcohol are all lighter.
Why is a US cup not 250 mL?
The US legal cup is 240 mL and the customary cup used in recipes is about 236.6 mL. The round 250 mL cup is the Australian and metric standard. In baking the gap is enough to notice.