What is unit conversion?
Unit conversion is when you convert a value that is measured in one set of units to another equivalent value in another set of units.
For example, the volume of a 12 oz drink can be converted to mL (knowing that 1 oz = 29.57 mL) as follows:
12 oz; 29.57 mL/oz = 355 mL
A somewhat more complex example is to convert the speed of a car going 55 mph to metric units (m/s):