How to Calculate CBM

shipping line of boxes-cartons image by Michael Brown from Fotolia.com

CBM is short for cubic meters, a measurement used in shipping. In the United States, you may be able to use cubic feet for packages you are shipping. However, if you have international shipping, you may be required to use cubic meters to measure the dimensions of your package. Properly calculating the volume of your packages helps you budget for shipping costs and ensures your packages will not be rejected for insufficient postage.

Measure the length, width and height of your package. If you have a measuring device that measures in meters, skip to step 3. If you can only measure in feet, continue to step 2.

Multiply each of your measurements in feet by 0.3048 feet per meter to convert the measurements to meters. For example, if your length measures 8 feet, you would multiply 8 by 0.3048 meters per foot to get 2.4384 meters.

Multiply the length times the width times the height, all measured in meters, to find the volume of the package in cubic meters. For example, if you had a package measuring 2.4384 meters long, 3.5 meters wide and 2 meters high, you would multiply 2.4384 meters by 3.5 meters by 2 meters, and find the volume to be 17.0688 cubic meters.

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About the Author

Mark Kennan is a writer based in the Kansas City area, specializing in personal finance and business topics. He has been writing since 2009 and has been published by "Quicken," "TurboTax," and "The Motley Fool."

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  • shipping line of boxes-cartons image by Michael Brown from Fotolia.com