The Construction Monkey Conductor calculator lets you figure out electrical characteristics
of wires including the ampacity, circular mills, area, resistance, reactance, impendance, conduit fill, and voltage drop.
Make your selections below and the form will automatically update the values.
Gauge:
Circular Mills:
Diameters
Insulation
Diameter
Area
Copper
Copper Ampacities
Temp Rating
Ampacity
Copper Impedances (per 1000ft)
Conduit Material
Reactance
Resistance
Impedance1
Maximum Length2
Voltage
Alum
PVC
Steel
120V
208V
277V
480V
Aluminum
Aluminum Ampacities
Temp Rating
Ampacity
Aluminum Impedances (per 1000ft)
Conduit Material
Reactance
Resistance
Impedance1
Maximum Length2
Voltage
Alum
PVC
Steel
120V
208V
277V
480V
Notes:
1Calculations based on 0.85 Power Factor
2Based on AC Circuit with 3% Maximum Voltage Drop and load based on 80% of 75°C ampacity rating
No guarantees are made as to the accuracy of the calculation or compliance with
local codes. Verify all calculations with a professional engineer. If you
find an error, or have a suggestion, please send us an email.