A cubic inch is a unit of volume used in the imperial and U.S. customary systems. It represents the space occupied by a cube, with each side measuring exactly one inch. One cubic inch is equal to 16.387 milliliters or approximately 0.0005787 cubic feet, and it's abbreviated as in³.
The cubic inch is often used to measure smaller volumes in areas like automotive design, mechanical components, and product manufacturing. It’s a go-to unit for things like engine size, compact storage, and custom parts where detailed, space-specific measurements are needed.
Uses: The cubic inch is most widely recognized in the automotive world, where it's often used to express engine size—especially in classic American vehicles. It's also used in engineering and manufacturing for parts design, packaging, and product specifications where precision is important.
In everyday use, you might see cubic inches listed when measuring the internal dimensions of a drawer, estimating the volume of a small box, or comparing product capacities. It remains a trusted unit for capturing volume in tight spaces where accuracy matters.
The imperial cup is a unit of volume that was historically used in the United Kingdom and other countries that followed the imperial measurement system. One imperial cup is equal to 284.131 milliliters, making it slightly larger than the US cup, which holds about 236.588 milliliters. While not as widely used today due to the UK's adoption of the metric system, the imperial cup still appears in older recipes, cookbooks, and household measurements.
It was designed to be a convenient mid-range measure—larger than a tablespoon but smaller than a pint. In many traditional British kitchens, the cup was used for dry and liquid ingredients, often measured with simple household items or standard measuring cups that followed imperial standards.
Uses: The imperial cup is most commonly seen in classic British recipes and cookbooks written before metrication. It measured ingredients like flour, sugar, milk, and oil in home and professional kitchens. Even today, you may find imperial cup references in family recipes passed down over generations or in online conversions of older dishes.
Though the UK now uses grams and milliliters for most cooking and product packaging, the imperial cup still holds relevance for those recreating traditional British meals or converting recipes that rely on imperial units. It also occasionally appears on measuring cups that include metric and imperial markings, helping home cooks bridge the gap between old and new systems.
1 in³ = 0.057674 cup (imp)
Let’s say you want to convert 100 in³ to cup (imp).
Using the formula:
100 × 0.057674 = 5.767 cup (imp)
So, 100 in³ is approximately 5.767 cup (imp).
| Cubic inch (in³) | Cup (Imperial) (cup (imp)) |
|---|---|
| 1 in³ | 0.058 cup (imp) |
| 2 in³ | 0.115 cup (imp) |
| 3 in³ | 0.173 cup (imp) |
| 4 in³ | 0.231 cup (imp) |
| 5 in³ | 0.288 cup (imp) |
| 6 in³ | 0.346 cup (imp) |
| 7 in³ | 0.404 cup (imp) |
| 8 in³ | 0.461 cup (imp) |
| 9 in³ | 0.519 cup (imp) |
| 10 in³ | 0.577 cup (imp) |
| 11 in³ | 0.634 cup (imp) |
| 12 in³ | 0.692 cup (imp) |
| 13 in³ | 0.75 cup (imp) |
| 14 in³ | 0.807 cup (imp) |
| 15 in³ | 0.865 cup (imp) |