Main Page | See live article | Alphabetical index To help compare different orders of magnitude we list here masses between 10-7 and 10-6 kg (0.1 and 1 milligram). See also masses of other orders of magnitude. Lighter masses 0.2 milligram -- average lethal dose of ricin Heavier masses External link Conversion Calculator for Units of MASS (& Weight) This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.