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AWG to mm² converter
American wire gauge and kcmil to square millimetres and back, with the next standard IEC size.
AWG → mm²
–
Circular mils–
Next standard metric size–
mm² → smallest AWG that is not smaller–
mm² → closest AWG–
The whole job, on your phone
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Questions
Is 2.5 mm² the same as 14 AWG?
Close but not equal: 14 AWG is 2.08 mm² and 12 AWG is 3.31 mm². When you replace a metric cable with AWG wire, pick the size that is not smaller and check ampacity and voltage drop for your circuit.
Where do these numbers come from?
Areas are from NEC Chapter 9, Table 8 (circular mils), converted with 1 cmil = 0.000506707 mm². Metric sizes are the IEC 60228 series.