Unit Definition (arms-length) An Arms length is standardized as a unit of distance equal to approximately 70 centimeters, or 28 inches. An arms length is the same as the modern Italian Braccio and very similar to the Turkish Pik.
Unit Definition (gnat's eye) The gnat's eye is an idiomatic "unit" of distance; it's common to hear that something is "as small as a gnat's eye". In fact, the eyes of typical gnats tend to have diameters similar in size to a hair's breadth: roughly 100-150 micrometers (0.10-0.15 millimeters).
To link to this page, copy the following code to your site.
Promote this page with a popular social bookmarking service [?]:
If you want to promote this page and share it with others on the web, we've made it easy for you to do.
Below you'll see icons (links) to various bookmarking services. These sites - commonly called 'social bookmark' or 'social news' sites - have large communities of web users who share and rate interesting, useful and important things on the web.
Clicking the links will automatically add the address of this page to the selected sites, letting you share it with others. Each site will ask you to register to share petitions and comments. Registration is free and once a member, you can store and recommend this page and others like it that may help others.
So please select a bookmarking service from the icons below if you wish to share this page with others.
Length/Distance 
Convert from arms-length to gnat's eye
