393.4 mg Sodium per 1 gram salt.

I just wanted a convenient searchable reference for this figure.  How much sodium per gram of salt?

393.4 mg of sodium in 1 g (gram) salt.

according to http://en.wikipedia.org/wiki/Sodium_chloride

That figure is for _pure_ sodium chloride.  Additives, such as anti-caking ingredients, will alter it slightly.  "Sea salt" and various "gourmet" salts may also include minerals, and may have included moisture, both of which would render a lower portion of sodium (and chloride).  393.4 would then be a maximum figure.