Joe with
Mike and Joe with Ramming Speed at BattleBots in May '01
AWG AMERICAN WIRE GAUGE TABLE FOR BARE COPPER WIRE
AWG = American Wire Gauge size from 0000 to 40
Dia-mils = Diameter in mils (1 mil = .001 inch)
TPI = Turns Per Inch [Note that this is for BARE WIRE. Insulation thickness
varies]
Dia-mm = Diameter in millimeters. This was included to help when dealing with
metric Coilers.
Circ-mils = Cross sectional Area in Circular Mils. ( circular mils = diameter in
mils squared )
Ohms/Kft = Ohms Per 1,000 ft.
Ft/Ohm = Number of feet required for 1 Ohm of resistance
Ft/Lb = Feet Per Pound
Ohms/Lb = Ohms Per Pound
Lb/Kft = Pounds Per 1,000 feet
*AMPS = Conservative Amp Rating based on 750 circulare mils per Amp
MaxAmps = Maximum allowable current based on 500 circular mils per Amp. Do NOT
exceed this rating.
AWG
Dia-mils
TPI
Dia-mm
Circ-mils
Ohms/Kft
Ft/Ohm
Ft/Lb
Ohms/Lb
Lb/Kft
*Amps
MaxAmps
0000
459.99
2.1740
11.684
211592
0.0490
20402
1.5613
0.0001
640.48
282.12
423.18
000
409.63
2.4412
10.405
167800
0.0618
16180
1.9688
0.0001
507.93
223.73
335.60
00
364.79
2.7413
9.2657
133072
0.0779
12831
2.4826
0.0002
402.80
177.43
266.14
0
324.85
3.0783
8.2513
105531
0.0983
10175
3.1305
0.0003
319.44
140.71
211.06
1
289.29
3.4567
7.3480
83690
0.1239
8069.5
3.9475
0.0005
253.33
111.59
167.38
2
257.62
3.8817
6.5436
66369
0.1563
6399.4
4.9777
0.0008
200.90
88.492
132.74
3
229.42
4.3588
5.8272
52633
0.1970
5075.0
6.2767
0.0012
159.32
70.177
105.27
4
204.30
4.8947
5.1893
41740
0.2485
4024.7
7.9148
0.0020
126.35
55.653
83.480
5
181.94
5.4964
4.6212
33101
0.3133
3191.7
9.9804
0.0031
100.20
44.135
66.203
6
162.02
6.1721
4.1153
26251
0.3951
2531.1
12.585
0.0050
79.460
35.001
52.501
7
144.28
6.9308
3.6648
20818
0.4982
2007.3
15.869
0.0079
63.014
27.757
41.635
8
128.49
7.7828
3.2636
16509
0.6282
1591.8
20.011
0.0126
49.973
22.012
33.018
9
114.42
8.7396
2.9063
13092
0.7921
1262.4
25.233
0.0200
39.630
17.456
26.185
10
101.90
9.8140
2.5881
10383
0.9989
1001.1
31.819
0.0318
31.428
13.844
20.765
11
90.741
11.020
2.3048
8233.9
1.2596
793.93
40.122
0.0505
24.924
10.978
16.468
12
80.807
12.375
2.0525
6529.8
1.5883
629.61
50.593
0.0804
19.765
8.7064
13.060
13
71.961
13.896
1.8278
5178.3
2.0028
499.31
63.797
0.1278
15.675
6.9045
10.357
14
64.083
15.605
1.6277
4106.6
2.5255
395.97
80.447
0.2031
12.431
5.4755
8.2132
15
57.067
17.523
1.4495
3256.7
3.1845
314.02
101.44
0.3230
9.8579
4.3423
6.5134
16
50.820
19.677
1.2908
2582.7
4.0156
249.03
127.91
0.5136
7.8177
3.4436
5.1654
17
45.257
22.096
1.1495
2048.2
5.0636
197.49
161.30
0.8167
6.1997
2.7309
4.0963
18
40.302
24.813
1.0237
1624.3
6.3851
156.62
203.39
1.2986
4.9166
2.1657
3.2485
19
35.890
27.863
0.9116
1288.1
8.0514
124.20
256.47
2.0648
3.8991
1.7175
2.5762
20
31.961
31.288
0.8118
1021.5
10.153
98.496
323.41
3.2832
3.0921
1.3620
2.0430
21
28.462
35.134
0.7229
810.10
12.802
78.111
407.81
5.2205
2.4521
1.0801
1.6202
22
25.346
39.453
0.6438
642.44
16.143
61.945
514.23
8.3009
1.9446
0.8566
1.2849
23
22.572
44.304
0.5733
509.48
20.356
49.125
648.44
13.199
1.5422
0.6793
1.0190
24
20.101
49.750
0.5106
404.03
25.669
38.958
817.66
20.987
1.2230
0.5387
0.8081
25
17.900
55.866
0.4547
320.41
32.368
30.895
1031.1
33.371
0.9699
0.4272
0.6408
26
15.940
62.733
0.4049
254.10
40.815
24.501
1300.1
53.061
0.7692
0.3388
0.5082
27
14.195
70.445
0.3606
201.51
51.467
19.430
1639.4
84.371
0.6100
0.2687
0.4030
28
12.641
79.105
0.3211
159.80
64.898
15.409
2067.3
134.15
0.4837
0.2131
0.3196
29
11.257
88.830
0.2859
126.73
81.835
12.220
2606.8
213.31
0.3836
0.1690
0.2535
30
10.025
99.750
0.2546
100.50
103.19
9.6906
3287.1
339.18
0.3042
0.1340
0.2010
31
8.9276
112.01
0.2268
79.702
130.12
7.6850
4145.0
539.32
0.2413
0.1063
0.1594
32
7.9503
125.78
0.2019
63.207
164.08
6.0945
5226.7
857.55
0.1913
0.0843
0.1264
33
7.0799
141.24
0.1798
50.125
206.90
4.8332
6590.8
1363.6
0.1517
0.0668
0.1003
34
6.3048
158.61
0.1601
39.751
260.90
3.8329
8310.8
2168.1
0.1203
0.0530
0.0795
35
5.6146
178.11
0.1426
31.524
328.99
3.0396
10480
3447.5
0.0954
0.0420
0.0630
36
5.0000
200.00
0.1270
25.000
414.85
2.4105
13215
5481.7
0.0757
0.0333
0.0500
37
4.4526
224.59
0.1131
19.826
523.11
1.9116
16663
8716.2
0.0600
0.0264
0.0397
38
3.9652
252.20
0.1007
15.723
659.63
1.5160
21012
13859
0.0476
0.0210
0.0314
39
3.5311
283.20
0.0897
12.469
831.78
1.2022
26496
22037
0.0377
0.0166
0.0249
40
3.1445
318.01
0.0799
9.8880
1048.9
0.9534
33410
35040
0.0299
0.0132
0.0198
Compiled by Fr. Thomas McGahee
tom_mcgahee@sigmais.com
This Table may be copied freely so long as credit is given to the author.
Originally compiled for use by those building Tesla coils on the TESLA and
TESLA-2 internet mailing lists.
Compiled in April 1998 based on information derived from various sources. Since
there were some discrepancies between data sources, the author has chosen not to
just copy the numbers found in those sources, but rather to write a program that
would generate the data based on a Best Fit mathematical model. The author has
checked the Diameter in mils results against the data contained in the
MACHINERY'S HANDBOOK, Twenty-First Edition, 1982, published by Industrial Press
Inc. All numbers shown are accurate to +/- 1 in the least significant digit
position.
