6 calculators
Wiring
Wire gauge (AWG), ampacity, voltage drop, and conduit fill calculators.
Calculators
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AWG to mm Calculator
Convert AWG to mm, mm², inches, kcmil, and copper resistance with a full wire gauge reference chart for metric cable comparisons.
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Conduit Fill Calculator
Find the minimum conduit trade size for mixed THHN/THWN-2 or XHHW/XHHW-2 conductor groups and compare conduit fill across EMT, IMC, RMC, and PVC raceways.
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SWG to mm Calculator
Convert SWG wire sizes from 7/0 to 50 into millimetres and mm² with a full Standard Wire Gauge reference table.
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Voltage Drop Calculator
Estimate actual conductor voltage drop, drop percentage, resistance, and power loss from current, one-way distance, wire size, conductor material.
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Wire Ampacity Calculator
Use this wire ampacity calculator to derate copper or aluminum conductors for ambient temperature, conductor count, and terminal limits.
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Wire Size Calculator
Find the correct AWG wire gauge for a circuit based on amperage, one-way distance, system voltage, conductor material, and allowable voltage drop.
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Ohm's law, voltage divider, series and parallel resistance calculators.
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Watts, kilowatts, kWh, energy cost, amps-to-kW, and power conversion calculators.
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Lumens, lux, candela, LED wattage, and lighting layout calculators.
Electrical Converters
Electrical unit converters for charge, potential, resistance, capacitance, and more.