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