The imperial gallon is a unit of volume used in the imperial measurement system, and it is historically common in the United Kingdom and several other countries. One imperial gallon is equal to 4.54609 liters, which makes it significantly larger than the US gallon (approximately 3.785 liters). It is abbreviated as gal and traditionally used for measuring liquids in larger quantities.
In the imperial system, a gallon is made up of four quarts, eight pints, or 160 imperial fluid ounces. Though the UK has officially adopted the metric system, the imperial gallon is still recognized in specific contexts and remains part of British measurement history. It's most commonly associated with fuel pricing and older food or drink packaging.
Uses: The imperial gallon is most commonly seen today at fuel stations in the UK, where petrol and diesel are still sold by the gallon for pricing comparisons, even though the actual quantity delivered is measured in liters. Historically, the gallon was used for everything from milk deliveries to beer and cider sales.
While modern recipes and packaging have largely shifted to liters and milliliters, the imperial gallon occasionally appears in traditional instructions or product specs, especially for bulk liquids. For those referencing older materials or converting classic measurements, the imperial gallon remains a useful and historically significant unit.
The imperial quart is a unit of volume from the imperial system, primarily used in the United Kingdom and some Commonwealth countries. One imperial quart equals 1.13652 liters or 40 imperial fluid ounces, making it larger than the US quart, which holds about 946 milliliters. It's abbreviated as qt and traditionally used to measure liquids and dry goods in household and commercial settings.
In the imperial system, a quart is equal to one-fourth of a gallon and twice the volume of a pint. Though metric units have largely replaced imperial measures in the UK, the quart still appears in older recipes, cooking references, and some product labels—especially in contexts where traditional measurements remain familiar and practical.
Uses: The imperial quart is often seen in vintage British recipes, where it's used to measure liquids like broth, milk, or cream. It also shows up in older cookbooks, measuring jugs, and kitchenware that still use imperial markings. While not as common in everyday packaging today, you might still encounter quarts in contexts like traditional food preparation or when referencing older British standards.
1 gal (imp) = 4.000009 qt (imp)
Let’s say you want to convert 100 gal (imp) to qt (imp).
Using the formula:
100 × 4.000009 = 400.001 qt (imp)
So, 100 gal (imp) is approximately 400.001 qt (imp).
| Gallon (Imperial) (gal (imp)) | Quart (Imperial) (qt (imp)) |
|---|---|
| 1 gal (imp) | 4 qt (imp) |
| 2 gal (imp) | 8 qt (imp) |
| 3 gal (imp) | 12 qt (imp) |
| 4 gal (imp) | 16 qt (imp) |
| 5 gal (imp) | 20 qt (imp) |
| 6 gal (imp) | 24 qt (imp) |
| 7 gal (imp) | 28 qt (imp) |
| 8 gal (imp) | 32 qt (imp) |
| 9 gal (imp) | 36 qt (imp) |
| 10 gal (imp) | 40 qt (imp) |
| 11 gal (imp) | 44 qt (imp) |
| 12 gal (imp) | 48 qt (imp) |
| 13 gal (imp) | 52 qt (imp) |
| 14 gal (imp) | 56 qt (imp) |
| 15 gal (imp) | 60 qt (imp) |