electrical calculators for electricians

http://www.electrician2.com now has 24 free online electrical calculators for conduit fill, voltage drop, power, ohm's law, Table 310.16 for wire size, OCPD, and continuous and noncontinuous loads, and parallel conductors and a motor circuit calculator. 23 of these calculators are written in JavScript and one is in Excel. The 2005 NEC Code is followed with these calculators.