All Charts Pro app for iPhone and iPad

Conduit Fill:
Calculates the percentage fill for mixed THHN insulated conductors in various types of conduits and also allows you to enter any wire diameters.

Voltage Drop:
Calculates the voltage drop for DC, single & three phase systems with power factor (Unity & Lagging)

AC Motor full load current finder:
Helps you quickly find AC motor full load currents from NEC tables:430.248, 430.250

Vertical Cable support distance table

Elbow dimensions for 90 deg

Grounding tables - 250.122 & 250.66

Wire Ampacity for copper and aluminum conductors with temperature correction and derating

Conduit spacing and knockout diameters