Electrical Cable Sizing Calculator
Pick a cable size that carries the load current safely after derating, and check its voltage drop.
Free · no sign-in requiredPurpose
Pick a cable size that carries the load current safely after derating, and check its voltage drop.
Inputs required
Load, voltage, power factor, cable length, installation method and derating factors.
Standards followed
IS 732, IS 3961 and IEC 60364-5-52 current ratings.
Free to use. No sign-in needed.
Open the Electrical Cable Sizing CalculatorEngineering reference & methodology
What you get
Design current, derated capacity, recommended cable size and voltage drop.
Results are preliminary design guidance. Verify every value against the edition of each standard adopted by your project or authority having jurisdiction, and against manufacturer performance data, before using it in design or procurement.
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