Wire size and conduit converters

North America sizes wire in AWG and kcmil; most of the world uses mm² (IEC 60228). These converters match one to the other, with the conductor's area, diameter and weight. Conduit inch trade sizes pair with metric designators, each with its typical knockout punch size.

• AWG / kcmil → mm²North American wire size to metric area and the matching IEC 60228 size.
• mm² → AWG / kcmilMetric wire area to the matching North American building-wire size.
• Conduit & knockoutsInch trade size ↔ metric designator (CEC / NEC), with the typical knockout punch diameter.

Back to top ▲