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.
The gallon (US) is a large unit of volume used in the U.S. customary measurement system. One US gallon is equal to 128 US fluid ounces, or approximately 3.785 liters. It's commonly abbreviated as gal and is often used for measuring larger quantities of liquids in household and commercial settings.
As one of the largest common units for liquid measurement in the United States, the gallon is widely recognized for storing and transporting liquids like milk, water, and gasoline. Its size makes it practical for bulk quantities and remains a standard unit in industries ranging from agriculture to retail packaging.
Uses: In everyday life, the US gallon is most commonly seen on milk jugs, bottled water, and fuel pumps. Whether you're filling up a gas tank or picking up a gallon of juice at the grocery store, this unit is a familiar part of American routines.
Beyond the home, the gallon is used across industries that handle large volumes—such as food service, chemical production, and farming. It's also a staple in recipes or instructions for making batches of beverages, soups, or cleaning solutions. Thanks to its capacity and widespread use, the gallon remains one of the most practical and recognizable units for measuring liquids in bulk.
1 qt (imp) = 0.300237 gal
Let’s say you want to convert 100 qt (imp) to gal.
Using the formula:
100 × 0.300237 = 30.024 gal
So, 100 qt (imp) is approximately 30.024 gal.
| Quart (Imperial) (qt (imp)) | Gallon (US) (gal) |
|---|---|
| 1 qt (imp) | 0.3 gal |
| 2 qt (imp) | 0.6 gal |
| 3 qt (imp) | 0.901 gal |
| 4 qt (imp) | 1.201 gal |
| 5 qt (imp) | 1.501 gal |
| 6 qt (imp) | 1.801 gal |
| 7 qt (imp) | 2.102 gal |
| 8 qt (imp) | 2.402 gal |
| 9 qt (imp) | 2.702 gal |
| 10 qt (imp) | 3.002 gal |
| 11 qt (imp) | 3.303 gal |
| 12 qt (imp) | 3.603 gal |
| 13 qt (imp) | 3.903 gal |
| 14 qt (imp) | 4.203 gal |
| 15 qt (imp) | 4.504 gal |