Cubic metric volume unit.
Cubic Millimeters to Cubic inches Converter — mm3 to in3
Convert Cubic Millimeter (mm3) to Cubic inch (in3) using the exact conversion factor (1 cubic millimeter = 0.0000610237 cubic inch). See the formula, worked examples, and conversion table.
Cubic Millimeters to Cubic inches converter
Converter
Volume Converter
Convert metric, US customary, imperial, cooking, dry, and industrial volume units.
Context values
Some unit families need one extra value for a physically accurate result.
A cubic inch is the volume of a one-inch cube.
Result = input x 1e-9 / 1.6387064e-5.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Cubic Millimeters to Cubic inches
Cubic Millimeter and Cubic inch appear side by side at fuel pumps and on beverage labels, since the US measures liquids in gallons while most of the world uses liters. Specifically: Cubic metric volume unit, and a cubic inch is the volume of a one-inch cube.
Formula
cubic inches = cubic millimeters × 0.0000610237440947
This factor comes from each unit's defined relationship to the category's base unit: 1 cubic millimeter equals 1e-9 base units, and 1 cubic inch equals 0.000016387064 base units, so dividing one by the other gives the direct cubic millimeter-to-cubic inch factor of 0.0000610237440947.
Simple example
1 mm3 × 0.00006102374409 = 0.0000610237 in3
1 cubic millimeter = 0.0000610237 cubic inches.
Real-world example
10 mm3 × 0.00006102374409 = 0.0006102374 in3
10 cubic millimeters = 0.0006102374 cubic inches.
Conversion table
| Cubic Millimeter (mm3) | Cubic inch (in3) |
|---|---|
| 1 mm3 | 0.0000610237 in3 |
| 5 mm3 | 0.0003051187 in3 |
| 10 mm3 | 0.0006102374 in3 |
| 25 mm3 | 0.0015255936 in3 |
| 50 mm3 | 0.0030511872 in3 |
| 100 mm3 | 0.0061023744 in3 |
Reverse conversion: Cubic inch to Cubic Millimeter
0.0000610237 in3 × 16387.064 = 0.9999992774 mm3
0.0000610237 cubic inches = 0.9999992774 cubic millimeters.
cubic millimeters = cubic inches × 16387.064
For a page dedicated to this direction, see Cubic inch to Cubic Millimeter.
Understanding the Cubic Millimeter (mm3)
Cubic metric volume unit.
Understanding the Cubic inch (in3)
A cubic inch is the volume of a one-inch cube.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic inches are in 1 cubic millimeter?
1 cubic millimeter equals 0.0000610237 cubic inches, using the exact defined conversion factor rather than an estimate.
How do I convert cubic millimeter to cubic inch?
Multiply the cubic millimeter value by 0.00006102374409. The converter above does this instantly to whatever precision you set.
How do I convert cubic inch back to cubic millimeter?
Use the reverse factor: 1 cubic inch equals 16,387.064 cubic millimeters. You can also use the swap control in the converter above to flip the direction instantly.
What is a cubic millimeter?
Cubic Millimeter (mm3) is a unit of volume.
What is a cubic inch?
Cubic inch (in3) is a unit of volume.
Is the cubic millimeter to cubic inch conversion exact?
Yes. Both cubic millimeter and cubic inch are defined by fixed standards rather than physical artifacts, so the factor of 0.00006102374409 used above is exact to as many digits as you choose to display.