Cubic metric volume unit.
Cubic Millimeters to Cubic Centimeters Converter — mm3 to cm3
Convert Cubic Millimeter (mm3) to Cubic Centimeter (cm3) using the exact conversion factor (1 cubic millimeter = 0.001 cubic centimeter). See the formula, worked examples, and conversion table.
Cubic Millimeters to Cubic Centimeters 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.
Cubic metric volume unit.
Result = input x 1e-9 / 1e-6.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Cubic Millimeters to Cubic Centimeters
Cubic Millimeter and Cubic Centimeter 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. Both are cubic metric volume unit units.
Formula
cubic centimeters = cubic millimeters × 0.001
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 centimeter equals 0.000001 base units, so dividing one by the other gives the direct cubic millimeter-to-cubic centimeter factor of 0.001.
Simple example
1 mm3 × 0.001 = 0.001 cm3
1 cubic millimeter = 0.001 cubic centimeters.
Real-world example
10 mm3 × 0.001 = 0.01 cm3
10 cubic millimeters = 0.01 cubic centimeters.
Conversion table
| Cubic Millimeter (mm3) | Cubic Centimeter (cm3) |
|---|---|
| 1 mm3 | 0.001 cm3 |
| 5 mm3 | 0.005 cm3 |
| 10 mm3 | 0.01 cm3 |
| 25 mm3 | 0.025 cm3 |
| 50 mm3 | 0.05 cm3 |
| 100 mm3 | 0.1 cm3 |
Reverse conversion: Cubic Centimeter to Cubic Millimeter
0.001 cm3 × 1000 = 1 mm3
0.001 cubic centimeters = 1 cubic millimeters.
cubic millimeters = cubic centimeters × 1000
For a page dedicated to this direction, see Cubic Centimeter to Cubic Millimeter.
Understanding the Cubic Millimeter (mm3)
Cubic metric volume unit.
Understanding the Cubic Centimeter (cm3)
Cubic metric volume unit.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many cubic centimeters are in 1 cubic millimeter?
1 cubic millimeter equals 0.001 cubic centimeters, using the exact defined conversion factor rather than an estimate.
How do I convert cubic millimeter to cubic centimeter?
Multiply the cubic millimeter value by 0.001. The converter above does this instantly to whatever precision you set.
How do I convert cubic centimeter back to cubic millimeter?
Use the reverse factor: 1 cubic centimeter equals 1,000 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 centimeter?
Cubic Centimeter (cm3) is a unit of volume.
Is the cubic millimeter to cubic centimeter conversion exact?
Yes. Both cubic millimeter and cubic centimeter are defined by fixed standards rather than physical artifacts, so the factor of 0.001 used above is exact to as many digits as you choose to display.