As mentioned in the notes above, there is no basic unit for volume in the SI system as there is in the metric system. Rather, volume units are derived from the basic unit for length. Remember that units can be multiplied just like numbers can. To calculate the volume of a cube or a box, you multiply length times width times height carrying the units along in your calculation. Thus the volume of a box that is 1 meter tall by 2 meters wide x 8 meters long would be 16 cubic meters: 1 m x 2 m x 8 m = 16 m3.
Common Units and Their Equivalents
Often, it is necessary to convert measurements in one system to their equivalents in another system. To do this, it is necessary to have a conversion factor for doing the calculation.
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