Cubic meters are a unit of volume, and kilograms are a unit of mass. Cubic meters can only be converted to kilograms if the density of a substance is known. If density is known, then multiplying the number of cubic meter... More » Math Arithmetic

Cubic meters, which measure volume, are converted to tons, which measure mass, by multiplying the number of cubic meters of a substance by its density in units of cubic meters per ton. Density is a physical property defi... More » Science Measurements

One cubic meter of soil weighs between 1.2 and 1.7 metric tonnes, or between 1,200 and 1,700 kilograms. These metric figures convert to between 2,645 and 3,747 pounds, or between 2.6 tons and 3.7 tons, per cubic meter. L... More » Science Measurements
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Air density is the mass of air per unit of volume it occupies, and it is expressed in kilograms per cubic meter when using the metric system. In the free atmosphere, air density decreases when temperature increases or wh... More » Science Measurements

The unit used to express volume is the cubic meter. This is the SI unit for the volume of a solid, gas or liquid. Volume is also expressed in units like liter, gallon, quart, pint, fluid ounce and cup. More » Math Arithmetic

Body Mass Index, or BMI, is a convenient method of screening possible weight problems that is calculated by dividing mass in kilograms by the square of height in meters. The Centers for Disease Control and Prevention use... More » Health Medical Ranges & Levels

As grams are a unit of mass and milliliters are a unit of volume, you need to know the density of the substance you are measuring in milliliters in order to convert the measurement from milliliters to grams. In the case ... More » Science Measurements