Cubic Inches to Milliliters Converter
Enter the volume in cubic inches below to convert it to milliliters.
Convert Cubic Inches to Milliliters
Enter a value in cubic inches (in³) to convert to milliliters (mL).
Cubic Inch to Milliliter Conversion Table
Table showing various cubic inch measurements converted to milliliters. Click any preset value or arrow to load it into the converter.
| Cubic Inches (in³) | Milliliters (mL) |
|---|---|
| 1 in³ | 16.387064 mL |
| 2 in³ | 32.774128 mL |
| 2.5 in³ | 40.96766 mL |
| 5 in³ | 81.93532 mL |
| 10 in³ | 163.87064 mL |
| 15 in³ | 245.80596 mL |
| 20 in³ | 327.74128 mL |
| 25 in³ | 409.6766 mL |
| 30 in³ | 491.61192 mL |
| 50 in³ | 819.3532 mL |
How to Convert Cubic Inches to Milliliters
To convert cubic inches to milliliters, multiply the volume by the following conversion ratio: 16.387064 milliliters/cubic inch.
Since one cubic inch is equal to 16.387064 milliliters, you can use this simple formula to convert:
The volume in milliliters is equal to the volume in cubic inches multiplied by 16.387064.
For example, here's how to convert 5 cubic inches to milliliters using the formula above.
How Many Milliliters Are in a Cubic Inch?
There are 16.387064 milliliters in a cubic inch, which is why we use this value in the formula above.
Our cubic inch to milliliter calculator automatically converts your volume measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Cubic Inches and milliliters 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 Milliliter?
A milliliter is a unit of volume equal to 1/1,000 of a liter (0.001 L). One-thousandth of a liter, identical to 1 cubic centimeter (cc). [2]
The milliliter is classified as a metric and SI-compatible unit of volume. Milliliters can be abbreviated as mL; for example, 1 milliliter can be written as 1 mL.
In the metric system, "milli" is the standard SI prefix for thousandths, or 10⁻³. This makes the milliliter (mL) a convenient decimal multiple of the liter (L).
In practice, milliliters (mL) are widely used across fine-tolerance laboratory, analytical, and micro-scale volume measurements within SI metric workflows, engineering documentation, and technical data sheets.
When converting volume between cubic inches (in³) and milliliters (mL), keep full floating-point precision (1 in³ = 16.387064 mL; 1 mL = 0.0610237 in³) during intermediate calculations and round only the final milliliter figure to match your instrument tolerance.
More Cubic Inch & Milliliter Conversions
Need to calculate in the opposite direction? Use our milliliters to cubic inches calculator to switch your starting unit immediately. You can also explore related tools such as converting milliliters to cubic inches, converting fluid ounces (us) to milliliters, or converting cups (us) to milliliters.
Convert from Cubic Inches
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Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Volume)·Volume & Liquid Metrology Standard — Cubic Inches (in³) to Milliliters (mL)
- [2]NIST HB 44 SpecificationNIST HB 44 (Liquid & Dry Capacity Tables)·Unit Specifications: Cubic Inch (in³) & Milliliter (mL)
- [3]NIST SP 811 ReferenceNIST SP 811 (NIST SP 811 App. B.9)·Conversion Factors & Mathematical Basis (in³ to mL)