How to Convert Mm3 to M3

by Lisa Porter

Mm3 or mm^3 stands for cubic millimeters, and M3 or m^3 stands for cubic meters. Cubic millimeters and cubic meters are metric volume measurements. One meter equals 1,000 millimeters, and so 1 cubic meter equals 1,000 millimeters cubed, or 1,000,000,000 cubic millimeters. If you have a large cubic millimeter measurement, it might be easier to work with the number if you convert it to cubic meters. You can convert a cubic millimeter measurement to a cubic meter measurement using a calculator or a free online unit converter.

Using a Calculator


Turn on the calculator.


Enter the cubic millimeter value.


Divide by 1,000,000,000. The new value is the cubic meter value.

Using an Online Unit Converter


Go to an online unit conversion calculator. Look at convert-to.com or unitconversion.org, or follow the Resource links.


Enter the cubic millimeter value and click “convert” or “calculate.”


Find the cubic meter value in the second column or box.


  • You might find cubic millimeter values written in scientific notation. For example, 1 cubic meter equals 1x 10^9, or 1,000,000,000.

Video of the Day

Brought to you by Techwalla
Brought to you by Techwalla

Items you will need

About the Author

Lisa Porter began writing professionally in 2009. She writes for various websites and has a Bachelor of Arts in English literature.

More Articles