Fluid Ounce (US) to Cubic Inch Converter
Convert Fluid Ounce (US) (fl oz) to Cubic Inch (in³) instantly. 1 fl oz = 1.804688 in³.
Volume Converter
40 units available
1 fl oz = 1.804688 in³
Formula:
in³ = fl oz × 1.8046875With your value: 1 fl oz = 1.8046875 in³
How big is that?
Everyday references on a logarithmic scale, all expressed in fluid ounce (us) so you can sanity-check the result.
Other Fluid Ounce (US) to Cubic Inch conversions
Fluid Ounce (US) to Cubic Inch Conversion Table
| Fluid Ounce (US) (fl oz) | Cubic Inch (in³) |
|---|---|
| 0.5 | 0.902344 |
| 1 | 1.804688 |
| 2 | 3.609375 |
| 5 | 9.023438 |
| 10 | 18.046875 |
| 15 | 27.070313 |
| 20 | 36.09375 |
| 25 | 45.117188 |
| 50 | 90.234375 |
| 100 | 180.46875 |
| 250 | 451.171875 |
| 500 | 902.34375 |
| 1000 | 1,804.6875 |
Cubic Inch to Fluid Ounce (US) Conversion Table
| Cubic Inch (in³) | Fluid Ounce (US) (fl oz) |
|---|---|
| 0.5 | 0.277056 |
| 1 | 0.554113 |
| 2 | 1.108225 |
| 5 | 2.770563 |
| 10 | 5.541126 |
| 15 | 8.311688 |
| 20 | 11.082251 |
| 25 | 13.852814 |
| 50 | 27.705628 |
| 100 | 55.411255 |
| 250 | 138.528139 |
| 500 | 277.056277 |
| 1000 | 554.112554 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Fluid Ounce (US) (fl oz)
Volume
Derived from the cubic metre. The litre is exactly 10⁻³ m³; US and imperial capacity units are exact multiples fixed by statute.
Source: NIST Special Publication 811, Guide for the Use of the International System of Units
National Institute of Standards and Technology (US) · Reviewed 2026-07-01
Cubic Inch (in³)
Volume
Derived from the cubic metre. The litre is exactly 10⁻³ m³; US and imperial capacity units are exact multiples fixed by statute.
Source: NIST Special Publication 811, Guide for the Use of the International System of Units
National Institute of Standards and Technology (US) · Reviewed 2026-07-01
How to Convert Fluid Ounce (US) to Cubic Inch
To convert from Fluid Ounce (US) (fl oz) to Cubic Inch (in³), multiply the value by 1.8046875.
Formula: in³ = fl oz × 1.8046875
Reverse: fl oz = in³ × 0.5541125541
Step-by-Step Example
- Start with your value in Fluid Ounce (US). For example: 5 fl oz
- Multiply by the conversion factor: 5 x 1.8046875
- The result is: 9.023438 in³
About Fluid Ounce (US)
The US fluid ounce equals approximately 29.57 mL. It is commonly used for beverage and liquid measurements.
Common uses: beverages, cooking, cocktails.
About Cubic Inch
The cubic inch (in³) is a unit of volume and capacity. One cubic inch equals 0.016387064 litres. UnitConvertLab converts it against every other volume unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
Common uses: volume calculations, engineering and science, education.
Frequently Asked Questions
How many Cubic Inch are in 1 Fluid Ounce (US)?
There are exactly 1.8046875 Cubic Inch in 1 Fluid Ounce (US). This means the conversion factor from Fluid Ounce (US) to Cubic Inch is 1.8046875.
What is the formula to convert Fluid Ounce (US) to Cubic Inch?
The formula to convert Fluid Ounce (US) to Cubic Inch is: in³ = fl oz × 1.8046875. For example, to convert 10 Fluid Ounce (US) to Cubic Inch, you would multiply 10 by 1.8046875.
What is a Fluid Ounce (US)?
The US fluid ounce equals approximately 29.57 mL. It is commonly used for beverage and liquid measurements.
What is a Cubic Inch?
The cubic inch (in³) is a unit of volume and capacity. One cubic inch equals 0.016387064 litres. UnitConvertLab converts it against every other volume unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
What are the common uses of Fluid Ounce (US)?
The Fluid Ounce (US) is commonly used in beverages, cooking, cocktails.
Related Volume Conversions
Cite this page
UnitConvertLab. (2026). Fluid Ounce (US) to Cubic Inch converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/fluid_ounce_us-to-cubic_inch