Cubic Meters Calculator

Calculate the cubic meters of a space given the length, width, and height measurements in millimeters, centimeters, meters, and even inches and feet.

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How to Calculate Cubic Meters

A cubic meter, or cubic metre as spelled in British English, is a measure of volume equivalent to a cube that has a length, width, and height of one meter. To calculate a volume in cubic meters, start by measuring your space or object.

When measuring, find the length, width, and height of the space in meters. If your measurements are in feet then the result would be in cubic feet and if they are in yards then the result would be in cubic yards.

Next, multiply the three measurements together to find the volume in cubic meters.

It’s as easy as that! If the space/object has a different shape than rectangular or cubic, check out our volume calculator for more complex shapes.

Cubic Meters Formula

cu m = length × width × height

The volume V in cubic meters is equal to the length times the width times the height, all measured in meters.

Cubic Meters Formula

cu m = length × width × height

The volume V in cubic meters is equal to the length times the width times the height, all measured in meters.

Calculate Cubic Meters Using Centimeter and Millimeter Measurements

Often a space will have measurements that are not easy or are too small to find in meters, and the measurements are in centimeters or millimeters. That’s OK! Use the formulas below to find cubic meters using centimeter and millimeter measurements.

Finding the volume in m3 when all measurements are in cm can be done like this (recall there are 100 cm in a meter, so we must divide by 1003 = 1,000,000):

cu m = length × width × height ÷ 1,000,000

Finding the volume in cubic meters when all measurements are in mm can be done like this (recall there are 1,000 mm in a meter, so we must divide by 1,0003 = 1,000,000,000):

cu m = length × width × height ÷ 1,000,000,000

We also have a cubic inches calculator.

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