📏 US cups to Imperial gallons Converter
Convert us cups (cup) to imperial gallons (imp gal) instantly, with the formula, a worked example and a conversion table.
Quick answer: 1 us cup (cup) = 0.052042137 imperial gallons (imp gal). Formula: imp gal = cup × 0.052042137.
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US cups to Imperial gallons Converter inputs
Result
1 cup =
0.052042137 imp gal
imp gal = cup × 0.052042137
1 us cup = 0.052042137 imp gal · imp gal to cup
US cups to Imperial gallons conversion table
| US cups (cup) | Imperial gallons (imp gal) |
|---|---|
| 0.1 cup | 0.0052042137 imp gal |
| 0.5 cup | 0.026021068 imp gal |
| 1 cup | 0.052042137 imp gal |
| 2 cup | 0.10408427 imp gal |
| 3 cup | 0.15612641 imp gal |
| 5 cup | 0.26021068 imp gal |
| 10 cup | 0.52042137 imp gal |
| 20 cup | 1.0408427 imp gal |
| 25 cup | 1.3010534 imp gal |
| 50 cup | 2.6021068 imp gal |
| 100 cup | 5.2042137 imp gal |
| 1,000 cup | 52.042137 imp gal |
Other volume conversions
cup to mLcup to Lcup to m³cup to tspcup to tbspcup to fl ozcup to ptcup to qtcup to galcup to imp gal
How to convert us cups to imperial gallons
Multiply the number of us cups by 0.052042137 to get imperial gallons: imp gal = cup × 0.052042137.
Example: 5 cup = 0.26021068 imp gal.
The us cup (cup) and the imperial gallon (imp gal) are both units of volume. Need the opposite direction? Use the imp gal to cup converter.
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Metric and imperial units
The metric system (SI) is used by almost every country and by science worldwide. Its units scale by powers of ten – 1 kilometer is 1,000 meters, 1 meter is 100 centimeters – which makes conversions inside the system easy. The imperial and US customary systems (inches, feet, pounds, gallons) are still used daily in the United States and partly in the UK.
Since 1959 the inch has been defined as exactly 2.54 centimeters and the pound as exactly 0.45359237 kilograms, so conversions between the two systems are exact. Note that a US gallon (3.785 L) and an imperial gallon (4.546 L) are different – choose the right one above.
This converter covers 10 categories and 66 units: length, weight, temperature, volume, area, speed, time, data, energy, pressure.
Frequently asked questions
How many imperial gallons are in a us cup?
1 us cup = 0.052042137 imperial gallons.
How do I convert us cups to imperial gallons?
Use the formula imp gal = cup × 0.052042137. For example, 5 cup = 0.26021068 imp gal.
How do I convert imperial gallons back to us cups?
1 imperial gallon = 19.215199 us cups. Use the imp gal to cup converter linked on this page.
Are these conversions exact?
Yes – all factors use the internationally defined values (for example 1 inch = 2.54 cm exactly, 1 pound = 0.45359237 kg exactly). Results are rounded to 8 significant digits for display.