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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