Free tool · Electrical
Voltage Drop Calculator
Work out the voltage drop along a cable run and check it against the allowed limit.
Free · no sign-in requiredPurpose
Work out the voltage drop along a cable run and check it against the allowed limit.
Inputs required
Current, cable size and material, run length, voltage and power factor.
Standards followed
IEC 60364-5-52 and IS 732 voltage drop limits.
Free to use. No sign-in needed.
Open the Voltage Drop CalculatorEngineering reference & methodology
What you get
Voltage drop in volts and percent, and a pass or fail against the limit.
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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