Cubic Inches to Cups Converter
Enter the volume in cubic inches below to convert it to cups.
Convert Cubic Inches to Cups (US)
Enter a value in cubic inches (in³) to convert to cups (us) (cup).
Cubic Inch to Cup Conversion Table
Table showing various cubic inch measurements converted to cups. Click any preset value or arrow to load it into the converter.
| Cubic Inches (in³) | Cups (US) (cup) |
|---|---|
| 1 in³ | 0.0692641 cup |
| 2 in³ | 0.1385281 cup |
| 2.5 in³ | 0.1731602 cup |
| 5 in³ | 0.3463203 cup |
| 10 in³ | 0.6926407 cup |
| 15 in³ | 1.038961 cup |
| 20 in³ | 1.3852814 cup |
| 25 in³ | 1.7316017 cup |
| 30 in³ | 2.0779221 cup |
| 50 in³ | 3.4632035 cup |
How to Convert Cubic Inches to Cups
To convert cubic inches to cups, multiply the volume by the following conversion ratio: 0.0692641 cups/cubic inch.
Since one cubic inch is equal to 0.0692641 cups, you can use this simple formula to convert:
The volume in cups is equal to the volume in cubic inches multiplied by 0.0692641.
For example, here's how to convert 5 cubic inches to cups using the formula above.
How Many Cups Are in a Cubic Inch?
There are 0.0692641 cups in a cubic inch, which is why we use this value in the formula above.
Our cubic inch to cup calculator automatically converts your volume measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Cubic Inches and cups are both units used to measure volume. Keep reading to learn more about each unit.
What Is a Cubic Inch?
A cubic inch is a unit of volume equal to 0.0163871 liters (L), the base unit for volume. Equal to 16.387064 milliliters. [1]
The cubic inch is classified as a US customary and imperial unit of volume. Cubic Inches can be abbreviated as in³; for example, 1 cubic inch can be written as 1 in³.
When working with cubic inches (in³) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, cubic inches (in³) are widely used across standard volume applications within US customary and imperial workflows, engineering documentation, and technical data sheets.
What Is a Cup?
A cup is a unit of volume equal to 0.2365882 liters (L), the base unit for volume. Equal to 8 US fluid ounces or 16 US tablespoons (236.59 mL). [2]
The cup is classified as a US customary unit of volume. Cups can be abbreviated as cup; for example, 1 cup can be written as 1 cup.
When working with cups (cup) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, cups (cup) are widely used across standard volume applications within US customary workflows, engineering documentation, and technical data sheets.
When converting volume between cubic inches (in³) and cups (cup), keep full floating-point precision (1 in³ = 0.0692641 cup; 1 cup = 14.4375 in³) during intermediate calculations and round only the final cup figure to match your instrument tolerance.
More Cubic Inch & Cup Conversions
Need to calculate in the opposite direction? Use our cups (us) to cubic inches calculator to switch your starting unit immediately. You can also explore related tools such as converting cups (us) to cubic inches, converting tablespoons (us) to cups (us), or converting liters to cups (us).
Convert from Cubic Inches
Weight and volume require ingredient density (g/mL). Choose a USDA FoodData Central verified ingredient below:
Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Volume)·Volume & Liquid Metrology Standard — Cubic Inches (in³) to Cups (US) (cup)
- [2]NIST HB 44 SpecificationNIST HB 44 (Liquid & Dry Capacity Tables)·Unit Specifications: Cubic Inch (in³) & Cup (US Customary) (cup)
- [3]NIST SP 811 ReferenceNIST SP 811 (NIST SP 811 App. B.9)·Conversion Factors & Mathematical Basis (in³ to cup)