Units of Mass conversion chart
These are some of the most common units of measurements that we use. However there are are other unit of measurements, the next chart shows some of these.

It also shows us that the metric system is based on units of 10
10 milligrams = 1 centigrams
10 centigrams = 1 decigram
10 decigrams = 1 gram

Its all in the Name...

The begin of the names for these unit of measurements give us a clue to how to convert them.