What Size Wire for a 15 Amp 120V Lighting Circuit?
15 amp circuits are the most common residential circuits for lighting and general-use outlets. Standard wire sizing for these circuits is fundamental electrical knowledge.
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20 Amp 120V Wire Size (Copper)
Calculate the proper wire size for a standard 20 amp 120V residential circuit with copper conductors.
30 Amp 240V Wire Size for Dryer (Copper)
Determine the correct wire gauge for a 30 amp 240V electric dryer circuit using copper conductors.
40 Amp 240V Wire Size for Range (Copper)
Calculate the proper wire gauge for a 40 amp 240V electric range or stove circuit with copper wire.
50 Amp 240V Wire Size (Copper)
Find the correct wire gauge for 50 amp 240V circuits including EV chargers, ranges, and sub-panels using copper conductors.
60 Amp 240V Sub-Panel Wire Size (Copper)
Calculate the proper wire size for feeding a 60 amp sub-panel with copper conductors.
100 Amp 240V Sub-Panel Wire Size (Copper)
Determine the correct wire gauge for a 100 amp sub-panel feeder using copper conductors.