US Cups to Cubic Inches
Convert us cups to cubic inches instantly. 1 cup = 14.4375 in³. Includes the exact factor, a conversion table of common values and the definition of both units.
How to convert us cups to cubic inches
To convert us cups to cubic inches, multiply by 14.4375. The relationship is fixed, so the same factor works for any quantity — there is nothing to look up and nothing that changes with temperature, location or context.
in³ = cup × 14.4375
US Cups to Cubic Inches conversion table
The values people look up most often, rounded for reading. Use the calculator above for anything in between.
| US Cups | Cubic Inches |
|---|---|
| 1 cup | 14.4375 in³ |
| 2 cup | 28.875 in³ |
| 3 cup | 43.3125 in³ |
| 5 cup | 72.1875 in³ |
| 10 cup | 144.375 in³ |
| 20 cup | 288.75 in³ |
| 25 cup | 360.9375 in³ |
| 50 cup | 721.875 in³ |
| 100 cup | 1,443.75 in³ |
| 500 cup | 7,218.75 in³ |
| 1,000 cup | 14,437.5 in³ |
What is a us cup?
8 US fluid ounces. The standard American recipe measure.
What is a cubic inch?
Exactly 16.387064 mL. The classic US engine-displacement unit.
The formula
in³ = cup × 14.4375
Every result on this page comes from this formula. Nothing is rounded until the final display, so figures match a spreadsheet to the cent.
How to use the US Cups to Cubic Inches
- Type the number of us cups you want to convert.
- Read the result in cubic inches straight away — there is no button to press.
- Check the table below for the values that come up most often, or reverse the conversion with the linked cubic inches to us cups page.
US Cups to Cubic Inches — frequently asked questions
How many cubic inches are in a us cup?
One us cup equals 14.4375 in³. in³ = cup × 14.4375
What is the formula to convert us cups to cubic inches?
The formula is in³ = cup × 14.4375. It is an exact definition rather than an approximation, so the conversion never drifts no matter how large the number.
How do I convert cubic inches back to us cups?
Divide instead of multiplying: one cubic inch is 0.0692640693 cup. The reverse converter is linked in the related tools list.
Is this conversion exact?
Yes. Both units are defined against the same base unit by international agreement, so the factor is exact — any rounding you see is only in the display, which you can widen by entering more decimal places.
Is this us cups to cubic inches free to use?
Yes. Every calculator on the site is free, needs no sign-up, and runs entirely in your browser, so your figures never leave your device.
What people search for
This page answers each of these searches. They are the exact phrases visitors use to find the us cups to cubic inches.
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About this calculator
Written and reviewed by The Samsung Calculator editorial team. Every calculator is written against a published formula, reviewed against at least one independent reference implementation, and dated when it changes.
Last reviewed August 15, 2026 · Calculation runs client-side · No data collected · Report an error