A cubic foot is a unit of volume used in the imperial and U.S. customary measurement systems. It represents the space occupied by a cube with sides that are each one foot long. One cubic foot is equal to 1,728 cubic inches or approximately 28.3168 liters. It's commonly abbreviated as ft³ and is typically used for measuring larger volumes, especially in construction, storage, and shipping.
Unlike units like milliliters or teaspoons, the cubic foot is designed for measuring bulk quantities or physical space. The cubic foot is often used when measuring things like the volume of a box, the size of a freezer, or how much air moves through a ventilation system. It serves as a practical unit for working with larger volumes in everyday and industrial settings.
Uses: The cubic foot is widely used in industries where space and volume matter. It's commonly seen in construction when calculating the volume of concrete, soil, or insulation. In shipping and logistics, it's used to estimate the capacity of containers and freight. Appliances like refrigerators, freezers, and ovens often list their internal capacity in cubic feet to help buyers compare storage space.
In everyday use, the cubic foot might show up when measuring a moving box's size, determining garage storage space, or calculating how much mulch is needed for a garden bed. It remains a trusted unit for real-world measurements where larger volumes are involved.
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.
1 ft³ = 6.228825 gal (imp)
Let’s say you want to convert 100 ft³ to gal (imp).
Using the formula:
100 × 6.228825 = 622.883 gal (imp)
So, 100 ft³ is approximately 622.883 gal (imp).
| Cubic foot (ft³) | Gallon (Imperial) (gal (imp)) |
|---|---|
| 1 ft³ | 6.229 gal (imp) |
| 2 ft³ | 12.458 gal (imp) |
| 3 ft³ | 18.686 gal (imp) |
| 4 ft³ | 24.915 gal (imp) |
| 5 ft³ | 31.144 gal (imp) |
| 6 ft³ | 37.373 gal (imp) |
| 7 ft³ | 43.602 gal (imp) |
| 8 ft³ | 49.831 gal (imp) |
| 9 ft³ | 56.059 gal (imp) |
| 10 ft³ | 62.288 gal (imp) |
| 11 ft³ | 68.517 gal (imp) |
| 12 ft³ | 74.746 gal (imp) |
| 13 ft³ | 80.975 gal (imp) |
| 14 ft³ | 87.204 gal (imp) |
| 15 ft³ | 93.432 gal (imp) |