Usage
Units will output the result of the conversion in two lines. Usually the first line (multiplication) is the desired result. The second line is the same conversion expressed as a division.
Units can also do math while converting, including several built in mathematical functions such as sin, cos, atan, log, exp, etc.
If you attempt to convert types of measurements that are incompatible units will print a conformability error message and display a reduced form of each measurement.
Read more about this topic: GNU Units
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