The process of unit conversion, often known as dimensional analysis, is a very important part of many real-world calculations. In mathematics, one learns to manipulate numbers, but in the real world numbers almost always have some sort of unit attached, and this needs to be managed correctly in order to...

## See

This Answer NowStart your **48-hour free trial** to unlock this answer and thousands more. Enjoy eNotes ad-free and cancel anytime.

Already a member? Log in here.

The process of unit conversion, often known as dimensional analysis, is a very important part of many real-world calculations. In mathematics, one learns to manipulate numbers, but in the real world numbers almost always have some sort of unit attached, and this needs to be managed correctly in order to arrive at a correct answer; without a unit, the answer is just a meaninless number.

Dimensional analysis allows one to convert between measurement systems easily. It also allows more obscure conversions, such as calculating how many atoms or molecules are present by using the weight of the substance. As far as real life examples, this sort of calculation is very important to medical personnel, who must use it to figure out dosages and test results.

**Further Reading**