FREE SHIPPING on orders over $100 for qualified items.

Open Mon-Fri 7 to 5 PST

Click to call now

Voltage Drop Calculator

k=12.9 for copper or k=21.2 for aluminum
Select Material
Select Size
SelectPhase and No. of wires
Enter Voltage (max)

Enter 1-way circuit length in feet

Enter Load in amperes
Voltage drop
Voltage at load end of circuit
Per Cent voltage drop
cma of conductor