The cup (US) is a standard unit of volume used in American cooking and baking. It's part of the U.S. customary system and is commonly abbreviated as cup or sometimes c in recipes. One US cup equals exactly 236.588 milliliters, and it's defined as 1/16 of a US gallon or 8 US fluid ounces.
In American kitchens, a cup is one of the foundational units in recipe measurement. It's used for both dry and liquid ingredients, making it a flexible and practical choice for home cooks. Measuring cups—available in sets ranging from ¼ cup to 1 cup—are essential tools in households across the country.
Uses: The US cup is widely used in recipes for measuring ingredients like flour, sugar, milk, oil, and grains. It provides a simple and consistent way to portion both dry and wet ingredients, which is especially important in baking where ratios must be precise.
You'll also find the cup used in nutrition guides and food labels, particularly when describing serving sizes. In everyday cooking, it's a go-to unit that makes scaling recipes up or down much easier. Whether you're following a recipe from a cookbook, a food blog, or a product package, the US cup is likely to be one of the most frequently referenced measurements.
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.
1 cup = 14.437454 in³
Let’s say you want to convert 2.5 cup to in³.
Using the formula:
2.5 × 14.437454 = 36.094 in³
So, 2.5 cup is approximately 36.094 in³.
| Cup (US) (cup) | Cubic inch (in³) |
|---|---|
| 1 cup | 14.437 in³ |
| 2 cup | 28.875 in³ |
| 3 cup | 43.312 in³ |
| 4 cup | 57.75 in³ |
| 5 cup | 72.187 in³ |
| 6 cup | 86.625 in³ |
| 7 cup | 101.062 in³ |
| 8 cup | 115.5 in³ |
| 9 cup | 129.937 in³ |
| 10 cup | 144.375 in³ |
| 11 cup | 158.812 in³ |
| 12 cup | 173.249 in³ |
| 13 cup | 187.687 in³ |
| 14 cup | 202.124 in³ |
| 15 cup | 216.562 in³ |