Voltage Drop Calculator

Select Material Copper Aluminum	Select Size 18 AWG 16 AWG 14 AWG 12 AWG 10 AWG 8 AWG 6 AWG 4 AWG 3 AWG 2 AWG 1 AWG 1/0 AWG 2/0 AWG 3/0 AWG 4/0 AWG 250 kcmil 300 kcmil 350 kcmil 400 kcmil 500 kcmil 600 kcmil 700 kcmil 750 kcmil
Select Voltage and Phase 120 Volts 1-phase 240 Volts 1-phase 208 Volts 3-phase 3-wire 120/208 Volts 3-phase 4-wire 277 Volts 1-phase 480 Volts 3-phase 277/480 3-phase 4-wire 24 DC or 1-phase AC 48 DC or 1-phase AC	Select Ambient Temperature C (use 30 C if unsure) -40C -35C -30C -25C -20C -15C -10 -5C 0C 5C 10C 15C 20C 25C 30C 35C 40C 45C 50C 55C 60C 65C 70C 75C 80C 85C 90C 95C 100C	Degrees F
Enter 1-way circuit length in feet	Enter Load in amperes
Voltage drop	Voltage at load end of circuit	Per Cent voltage drop
Conductor Temperature   Degrees C.

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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