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How to calculate cubic metres

Updated May 25, 2017

Finding cubic metres is the same thing as finding the volume of an item, measured in metres. Take a few measurements, do a simple calculation, and you have your answer. Just grab your metric ruler -- using one in inches and feet will work but requires different conversions.

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Measure the height of your object.

Measure the length.

Measure the width.

Convert measurements to metres if they are not already. If measurement was taken in millimetres, divide by 1,000. If by centimetres, divide by 100.

Multiply the three measurements. The answer is given in cubic metres.


If all you have is a standard ruler, convert feet to metres by multiplying the measurement in feet by 0.3048.


If you are looking to put something in a cube, measure the inside height, length and width for an accurate answer.

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Things You'll Need

  • Metric ruler

About the Author

After 10+ years in Information Technology, Chris Shore switched to writing three years ago. His IT skills have brought him in contact with many different industries, including teaching, where he spent five years as a computer engineering instructor. Shore's work has appeared on several websites, including,, and

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