The table below lists the calculators offered on this site, as well as a description of each. Many additional calculators are in development, and will be added to this site in the near future.

List of Wire Size Calculators

Calculator Description
Wire Size Calculator Calculates wire size based on amps, wire insulation, conductor and installation.
Advanced Wire Size Calculator Calculates wire size based on amps, wire insulation, conductor and installation. Also, adds correction factors for voltage drop, temperature and number of conductors.
Maximum Wire Ampacity Calculator Calculates maximum ampacity of a wire based on insulation, conductor and installation.
Advanced Maximum Wire Ampacity Calculator Calculates maximum ampacity of a wire based on insulation, conductor and installation. Also, adds correction factors for voltage drop, temperature and number of conductors.
Arc Flash Calculator Calculates arc flash incident energy level and flash protection boundary.
Voltage Drop Calculator Calculates voltage drop, voltage at load, and percentage drop based on voltage, phases, amps, wire size, conductor and length of conductor run.
Circuit Distance Calculator Calculates maximum length of conductor run, voltage drop, and voltage at load based on voltage, phases, amps, wire size, conductor and maximum percentage drop.
Motor Wire Size Calculator Calculates the full-load amps, wire size, breaker size, heater size, starter size and conduit size for a given motor HP and voltage.
Ground Conductor Size Calculator Determines minimum recommended ground conductor size for copper and aluminium conductors based on ampere rating of over-current devices in the circuit.
Distance Between Conduit Supports Calculator Determines maximum distance between rigid metallic and non-metallic conduit supports based on conduit size.
Resistor Color Code Calculator Calculates the resistance value of a 4- or 5-band resistor based on the resistor color code.

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