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Online Calculators & Tools

AWG to mm/mm2 conversion

Select gauge #:
Enter gauge #:
AWG
Diameter in millimeters:
mm
Cross sectional area in square millimeters:
mm2

* Diameter and area values are rounded to fit the nearest AWG value.

** The diameter and area of the conducting wire without insulation.

Wire gauge calculator

AWG to total area calculator

# of wires/strandsGauge #
Total wire area in square millimeters:
mm2
Total wire area in square inches:
in2

How to convert AWG to mm

When calclating AWG from diameter or cross sectional area, the diameter and cross sectional area are rounded to the nearest AWG equivalent values.

Wire diameter calculation

The n gauge wire diameter dnin millimeters (mm) is equal to 0.127mm times 92 raised to the power of 36 minus gauge number n, divided by 39:

dn (mm) = 0.127 mm × 92(36-n)/39

 

0.127mm is the diameter of gauge #36.

Wire cross sectional area calculation

The n gauge wire's cross sercional area Anin square millimeters (mm2) is equal to pi divided by 4 times the square wire diameter d in millimeters (mm):

An (mm2) = (π/4)×dn2= 0.012668 mm2 × 92(36-n)/19.5

AWG to mm conversion chart

AWG #Diameter
(mm)
Diameter
(inch)
Area
(mm2)
0000 (4/0)11.68400.4600107.2193
000 (3/0)10.40490.409685.0288
00 (2/0)9.26580.364867.4309
0 (1/0)8.25150.324953.4751
17.34810.289342.4077
26.54370.257633.6308
35.82730.229426.6705
45.18940.204321.1506
54.62130.181916.7732
64.11540.162013.3018
73.66490.144310.5488
83.26360.12858.3656
92.90640.11446.6342
102.58820.10195.2612
112.30480.09074.1723
122.05250.08083.3088
131.82780.07202.6240
141.62770.06412.0809
151.44950.05711.6502
161.29080.05081.3087
171.14950.04531.0378
181.02370.04030.8230
190.91160.03590.6527
200.81180.03200.5176
210.72290.02850.4105
220.64380.02530.3255
230.57330.02260.2582
240.51060.02010.2047
250.45470.01790.1624
260.40490.01590.1288
270.36060.01420.1021
280.32110.01260.0810
290.28590.01130.0642
300.25460.01000.0509
310.22680.00890.0404
320.20190.00800.0320
330.17980.00710.0254
340.16010.00630.0201
350.14260.00560.0160
360.12700.00500.0127
370.11310.00450.0100
380.10070.00400.0080
390.08970.00350.0063
400.07990.00310.0050
410.07110.00280.0040
420.06330.00250.0032
430.05640.00220.0025
440.05020.00200.0020
450.04470.00180.0016
460.03980.00160.0012
470.03550.00140.0010
480.03160.00120.0008
490.02810.00110.0006
500.02510.00100.0005