Dimensional Analysis:

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Dimensional analysis is a process that allows changing of units. If you were going to change from centimeters to meters Dimensional analysis allows an easy way to change. To start you must decide what the conversion factor is, so we know that 100 centimeters = 1 meter.
In Dimensional analysis you can setup the equation like this.

The centimeters are in the denominator of the conversion factor because the measurement is already in centimeters. The answer comes out in meters because the centimeters cancel in the division.

Other Examples:

13.1 g (1000mg / 1g) = 13,100 mg


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