Cable Units of Measurement

Equivalence between metric size and AWG-kcmil

The US American standardization extracts several standardized sections from 0.324 to 253 mm2. Sections are designed by a gauge-number AWG or a section in MCM (Mil Circular Mil). AWG numbers are identical with the British Brown and Sharpe (B&S) numbers.

1 Mil = 0.0254 mm = 1/100 inch
1 MCM = 0.5067 mm2

AWG/kcmil mm2 AWG/kcmil mm2 MCM mm2
18 0.823 7 10.55 250 127
17 1.04 6 13.3 300 152
16 1.31 5 16.77 350 177
15 1.65 4 21.15 400 203
14 2.08 3 26.67 450 228
13 2.63 2 33.62 500 253
12 3.31 1 42.41 550 279
11 4.17 1/0 53.49 600 304
10 5.261 2/0 67.43
9 6.631 3/0 85.01
8 8.361 4/0 107.2

Conversion from non-metric systems – Measures of length

Unit mils inch foot yard cm m
1 mils 1 0.001 0.0000833 0.0000278 0.00254 0.0000254
1 inch 1,000 1 0.0833 0.02278 2.54 0.0254
1 foot 12,000 12 1 0.3333 30.48 0.3048
1 yard 36,000 36 3 1 91.44 0.9144
1 cm 393.7 0.3937 0.0328 0.01094 1 0.01
1 m 39,370 39.37 3,281 1,094 100 1

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