AWG Copper Wire Table:

  This wire table is provided for information only.  You need to know what you are doing to use it correctly, and to avoid potentially unsafe situation.  It is not guaranteed to be correct, or to meet any particular electrical codes.  Legal Disclaimer.

 
The wire table is provided by: http://www.bnoack.com

American Wire Gauge (AWG)

Used in the United States and other countries as a standard method of denoting wire diameter. The higher the number the thinner the wire. Thicker wire is generally capable of carrying larger amount of current over greater distances with less loss (though there are other things that cause current loss in wire). Sometimes the loss of cables is rated in Ohms per one thousand feet and for a particular type of wire the lower gauges (larger wires) have less resistance to current flow. (Sweetwater Archive)

 

AWG American Wire Gauge Table:

           
AWG 
Diameter 
Diameter 
Square 
Resistance 
Resistance 
 
mm 
inch 
  mm2 
ohm/km 
ohm/1000 feet 
           
46 0,04   0,0013 13700  
44 0,05   0,0020 8750  
42 0,06   0,0028 6070  
41 0,07   0,0039 4460  
40 0,08   0,0050 3420  
39 0,09   0,0064 2700  
38 0,10 0,0040 0,0078 2190  
37 0,11 0,0045 0,0095 1810  
36 0,13 0.005 0,013 1300 445
35 0,14 0,0056 0,015 1120  
34 0,16 0.0063 0,020 844 280
33 0,18 0,0071 0,026 676  
         
AWG 
Diameter 
Diameter 
Square 
Resistance 
Resistance 
 
mm 
inch 
  mm2 
ohm/km 
ohm/1000feet 
         
32 0,20 0.008 0,031 547 174
30 0,25 0.01 0,049 351 113
28 0,33 0.013 0,08 232.0 70.8
27 0,36 0.018 0,096 178 54.4
26 0,41 0.016 0,13 137 43.6
25 0,45 0,0179 0,16 108  
24 0,51 0.02 0,20 87,5 27.3
22 0,64 0.025 0,33 51,7 16.8
20 0,81 0.032 0,50 34,1 10.5
18 1,02 0.04 0,82 21,9 6.6
16 1,29 0.051 1,3 13,0 4.2
14 1,63 0.064 2,0 8,54 2.6
         
AWG 
Diameter 
Diameter 
Square 
Resistance 
Resistance 
 
mm 
inch 
  mm2 
ohm/km 
ohm/1000feet 
         
13 1,80 0,0720 2,6 6,76  
12 2,05 0.081 3,3 5.4 1.7
10 2.59 0.102 5.26 3.4 1.0
8 3.25 0.128 8..296 2.2 0.67
6 4.115 0.165 13.298 1.5 0.47
4 5.189 0.2043 21.15 0.8 0.24
2 6.543 0.2576 33.62 0.5 0.15
1 7.348 0.2893 42.41 0.4 0.12
0 8.252 0.325 53.49 0.31 0.096
00 9.266 0.365 67.43 0.25 0.077
000 10.40 0.4096 85.01 0.2 0.062
0000 11.684 0.460 107.219 0.16 0.049
         


 
       
Metric Gauge 
Diameter 
Square 
Resistance 
 
mm 
  mm2 
ohm/m 
       
5 0,5 0,20 0,0838
6 0,6 0,28 0,0582
8 0,8 0,5 0,0328
10 1,0 0,8 0,0210
14 1,4 1,54 0,0107
16 1,6 2,0 0,00819
20 2,0 3,14 0,00524
25 2,5 4,91 0,00335


 
US National Electrical Code
maximum Amperage
AWG Wire Size Two Current Carrying Conductors Three Current Carrying Conductors
  Ampere Ampere
18 7 10
16 10 13
14 15 18
12 20 25
10 25 30
8 35 40
6 45 55
4 60 70
2 80 95


 
Amperage for Power Extension Cords
(always uncoil the cord completely under oreration)
   
14 / 3 AWG Cable
Length Amperage
50' 15 A
100' 13 A
150' 8 A
200' 6 A
250' 5 A
300' 4 A
   
12 / 3 AWG Cable
Length Amperage
50' 15 A
100' 15 A
150' 13 A
200' 10 A
250' 7 A
300' 6 A
   
10 / 3 AWG Cable
Length Amperage
50' 15 A
100' 15 A
150' 15 A
200' 15 A
250' 13 A
300' 10 A


 
AWG / Amperage and Connectors
AWG max. Amperage Connector
0000 (4/0) 300 A CamLock
000 (3/0) 260 A CamLock
00 (2/0) 225 A CamLock
0 (1/0) 195 A CamLock
2 125 A C-Way (50')
4 90 A C-Way (50')
6 70 A Joy&Cabtire (25'&50')
8 50 A Joy&Cabtire (25'&50')
10 30 A Joy&Cabtire (25'&50')
12 20 A A.C. Wire (25'&50')
14 15 A A.C. Wire (25'&50')
16 10 A A.C. Wire


 
Amperage that is needed to heat up the insulation to a certain temperature (Copper Cable / different Insulation Materials) in free air (30C)
AWG POLYPROPYLENE, POLYETHYLENE,
(high density) at 90C
PVC (irradiated), NYLON at 105C KAPTON, TEFLON, SILICONE at 200C
30 3 A 3 A 4 A
28 4 A 4 A 6 A
26 5 A 5 A 7 A
24 7 A 7 A 10 A
22 9 A 10 A 13 A
20 12 A 13 A 17 A
18 17 A 18 A 24 A
16 22 A 24 A 32 A
14 30 A 33 A 45 A
12 40 A 45 A 55 A
10 55 A 58 A 75 A
8 70 A 75 A 100 A
6 100 A 105 A 135 A
4 135 A 145 A 180 A
2 180 A 200 A 240 A