Information on this web site:
Calculate conduit and wire size based on tables from the 2008 NEC.
Power Factor Calculator
Calculate kVAR requirements and corrected overload settings.
Some NEMA and IEC motor connections and winding configurations.
Convert HP and kW.
Calculate transformer values.
Convert Fahrenheit and Celcius.
Information external to this web site:
Square D NEMA Motor Data Calculator
Square D's "slipstick" motor calculator as well as other tools. Use drop down box to select tool and go.
Voltage Drop Calculator
Designed to give the approximate loss factors in AC or DC circuits.
Wire Size Calculator
Used to determine the size of a conductor in a circuit.
The Mini Chopper Builder's Unit Converter
Everything you need to convert weights, lengths, angels, force and torque, metric to English units, electrical, etc.