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Advanced Voltage Drop Calculator

Also Use Ampacity Tables To Select Correct Size Conductor. This Calculator Only Determines Voltage Drop For A Given Conductor.

Select Material:

Select Voltage and Phase:
Select Ambient Temperature C
(use 30 C if unsure)


Degrees F
Enter 1-Way Circuit Length in Feet:

Enter Load in Amperes:
Select Size:
Voltage Drop:
Voltage at Load End of Circuit:
Per Cent Voltage Drop:
Data:
(Conductor Temperature Should Not Exceed Temperature For Which insulation is Rated)
cma of
Conductor

RCA
Thermal

tah
Temp

Pc
Resistance

Conductor
Temp

K for
Temp