Wire Gauge

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Johnsly Active Contributor Join Date: Oct 2008 Location: Kottayam, Kerala, India. Now at Qatar Posts: 10	Wire Gauge 11/20/2008 4:50 PM
	What is this SWG, AWG etc. of wires? Is there any relation for this indication to thickness of wires? If so, how it is related? I think gauge is something related to pressure!!!
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#4 "Re: Wire Gauge" by babybear on 11/21/2008 2:51 AM (score 6)

RVZ717 Guru Join Date: Oct 2008 Location: City of Roses. Posts: 2056 Good Answers: 101	#1 Re: Wire Gauge 11/20/2008 4:57 PM
	SWG=Standard wire gauge AWG=American wire gauge Yes they are directly related to the thickness of the wire 1GA=.300 inch wheras 12GA=.1040 inch smaller gauge number the thicker the wire. __________________ Don't believe everything you read on the Internet!
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bhankiii Guru Join Date: Sep 2006 Location: El Lago, Texas, USA Posts: 2639 Good Answers: 65	#2 Re: Wire Gauge 11/20/2008 4:57 PM
	It has everything to do with wire thickness. AWG - American Wire Gauge http://www.powerstream.com/Wire_Size.htm When I hear "gauge" I think of model trains.
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Anonymous Poster	#3 Re: Wire Gauge 11/20/2008 11:35 PM
	Hi...in commonweath countries you'll find some workmen mixing up BG & SWG. BG stands for Brimingham Guage and it measures sheet metal thickness whereas SWG is to be used to check & specify wire diameters. There is some difference between both these guages.
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Nigh Guru Join Date: Jul 2005 Location: South east U.K. Posts: 3695 Good Answers: 93	#5 In reply to #3 Re: Wire Gauge 11/21/2008 5:18 AM
	SWG is also used to specify sheet thicknesses. __________________ I didn't have a really important life, but at least it's been funny (Lemmy Kilminster 1945-2015)
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babybear Guru Join Date: Jun 2008 Location: USA/Europe Posts: 4547 Good Answers: 68	#10 In reply to #5 Re: Wire Gauge 11/21/2008 1:19 PM
	Hello Nigh, SWG is also used to specify sheet thicknesses. You are correct there. __________________ Take it easy, bb. >"HEAR & you FORGET<>SEE & you REMEMBER<>DO & you UNDERSTAND"<=$=\|O\|=$=>"Common Sense is Genius dressed in its Working Clothes"<>[Ralph Waldo Emerson]
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babybear

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Good Answers: 68

Re: Wire Gauge

11/21/2008 2:51 AM

Hello Johnsly:

Standard Wire Gauge is The Imperial measure.

American Wire Gauge is the USA measure.

You may find the Conversion Chart below a help.

SWG/AWG Wire Gauge Chart
ISO Metric Preferred Size Chart

Wire Gauge Chart

Wire Number (Gauge)	Standard Wire Gauge (SWG)		American Wire Gauge (AWG)
gauge	in.	equivalent in mm	in.	equivalent in mm
0000000 (7/0)	0.5000	12.700	-	-
000000 (6/0)	0.4640	11.786	0.580000	14.7320
00000 (5/0)	0.4320	10.973	0.516500	13.1191
0000 (4/0)	0.4000	10.160	0.460000	11.6840
000 (3/0)	0.3720	9.449	0.409642	10.4049
00 (2/0)	0.3480	8.839	0.364796	9.2658
0 (1/0)	0.3240	8.230	0.324861	8.2515
1	0.3000	7.620	0.289297	7.3481
2	0.2760	7.010	0.257627	6.5437
3	0.2520	6.401	0.229423	5.8273
4	0.2320	5.893	0.2043	5.1892
5	0.2120	5.385	0.1819	4.6203
6	0.1920	4.877	0.1620	4.1148
7	0.1760	4.470	0.1443	3.6652
8	0.1600	4.064	0.1285	3.2639
9	0.1440	3.658	0.1144	2.9058
10	0.1280	3.251	0.1019	2.5883
11	0.1160	2.946	0.0907	2.3038
12	0.1040	2.642	0.0808	2.0523
13	0.0920	2.337	0.0720	1.8288
14	0.0800	2.032	0.0641	1.6281
15	0.0720	1.829	0.0571	1.4503
16	0.0640	1.626	0.0508	1.2903
17	0.0560	1.422	0.0453	1.1506
18	0.0480	1.219	0.0403	1.0236
19	0.0400	1.016	0.0359	0.9119
20	0.0360	0.914	0.0320	0.8128
21	0.0320	0.813	0.0285	0.7239
22	0.0280	0.711	0.0253	0.6426
23	0.0240	0.610	0.0226	0.5740
24	0.0220	0.599	0.0201	0.5105
25	0.0200	0.508	0.0179	0.4547
26	0.0180	0.457	0.0159	0.4039
27	0.0164	0.417	0.0142	0.3607
28	0.0148	0.376	0.0126	0.3200
29	0.0136	0.345	0.0113	0.2870
30	0.0124	0.315	0.0100	0.2540
31	0.0116	0.295	0.0089	0.2261
32	0.0108	0.274	0.0080	0.2032
33	0.0100	0.254	0.0071	0.1803
34	0.0092	0.234	0.0063	0.1600
35	0.0084	0.213	0.0056	0.1422
36	0.0076	0.193	0.0050	0.1270
37	0.0068	0.173	0.0045	0.1143
38	0.0060	0.152	0.0040	0.1016
39	0.0052	0.132	0.0035	0.0889
40	0.0048	0.122	0.0031	0.0787
41	0.0044	0.112	0.0028	0.0711
42	0.0040	0.102	0.0025	0.0635
43	0.0036	0.0914	0.0022	0.0559
44	0.0032	0.0813	0.0020	0.0508
45	0.0028	0.0711	0.0018	0.0457
46	0.0024	0.0610	0.0016	0.0406
47	0.0020	0.0508	0.0014	0.0356
48	0.0016	0.0406	0.0012	0.0305
49	0.0012	0.0305	0.0011	0.0279
50	0.0010	0.0254	0.0010	0.0254
51	-	-	0.00088	0.02235
52	-	-	0.00078	0.0198
53	-	-	0.00070	0.0178
54	-	-	0.00062	0.0157
55	-	-	0.00055	0.0140
56	-	-	0.00049	0.01245

ISO Metric Preferred Sizes Wire Gauge Chart

ISO Metric Preferred Sizes (mm)				Nearest SWG Size (inches)
R10	R20	R40	Equiv in inches	Nearest SWG Size (inches)
0.025	0.025	0.025	0.00098
0.026	0.00102	0.00102
0.028	0.028	0.00110
0.030	0.00118	0.00118
0.032	0.032	0.032	0.00126
0.034	0.00134
0.036	0.036	0.00142
0.038	0.00150
0.040	0.040	0.040	0.00158	0.0016
0.042	0.00165
0.045	0.045	0.00177
0.048	0.00189
0.050	0.050	0.050	0.00197	0.002
0.053	0.00209
0.056	0.056	0.00220
0.060	0.00236	0.0024
0.063	0.063	0.063	0.00248
0.067	0.00264
0.071	0.071	0.00280	0.0028
0.075	0.00295
0.080	0.080	0.080	0.00315	0.0032
0.085	0.00335
0.090	0.090	0.00354	0.0036
0.095	0.00374
0.100	0.100	0.100	0.00394	0.004
0.106	0.00417
0.112	0.112	0.00441	0.0044
0.118	0.00465	0.0048
0.125	0.125	0.125	0.00492
0.132	0.00520	0.0052
0.140	0.140	0.00551
0.150	0.00591	0.006
0.160	0.160	0.160	0.00630
0.170	0.00669	0.0068
0.180	0.180	0.00709
0.190	0.00748	0.0076
0.200	0.200	0.200	0.00787
0.212	0.00835	0.0084
0.224	0.224	0.00882
0.236	0.00929	0.0092
0.250	0.250	0.250	0.00984	0.0100
0.265	0.01043
0.280	0.280	0.01102	0.0108
0.300	0.01181	0.0116
0.315	0.315	0.315	0.01240	0.0124
0.335	0.01319
0.355	0.355	0.01398	0.0136
0.375	0.01476	0.0148
0.400	0.400	0.400	0.01575
0.425	0.01673	0.0164
0.450	0.450	0.01772	0.018
0.475	0.01870
0.500	0.500	0.500	0.01969	0.020
0.530	0.02087	0.021
0.560	0.560	0.02205	0.022
0.600	0.02362	0.024
0.630	0.630	0.630	0.02480
0.670	0.02638	0.026
0.710	0.710	0.02795	0.028
0.750	0.02953	0.030
0.800	0.800	0.800	0.03150	0.032
0.850	0.03346	0.034
0.900	0.900	0.03543	0.036
0.950	0.03740	0.038
1.00	1.00	1.00	0.03937	0.040
1.06	0.04173
1.12	1.12	0.04409	0.044
1.18	0.04646
1.25	1.25	1.25	0.04921	0.048
1.32	0.05197	0.052
1.40	1.40	0.05512	0.056
1.50	0.05906	0.060
1.60	1.60	1.60	0.06299	0.064
1.70	0.06693	0.068
1.80	1.80	0.07087	0.072
1.90	0.07480	0.076
2.00	2.00	2.00	0.07874	0.080
2.12	0.08346
2.24	2.24	0.08819	0.086
2.36	0.09291	0.092
2.50	2.50	2.50	0.09843	0.098
2.65	0.10433	0.104
2.80	2.80	0.11024	0.110
3.00	0.11811	0.116
3.15	3.15	3.15	0.12402	0.122
3.35	0.13189	0.128
3.55	3.55	0.13976	0.136
3.75	0.14764	0.144
4.00	4.00	4.00	0.15748	0.160
4.25	0.16732	0.168
4.50	4.50	0.17717	0.176
4.75	0.18701	0.184
5.00	5.00	5.00	0.19685	0.192
5.30	0.20866	0.212
5.60	5.60	0.22047	0.222
6.00	0.23622	0.232
6.30	6.30	6.30	0.24803	0.252

__________________
Take it easy, bb. >"HEAR & you FORGET<>SEE & you REMEMBER<>DO & you UNDERSTAND"<=$=|O|=$=>"Common Sense is Genius dressed in its Working Clothes"<>[Ralph Waldo Emerson]

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Kwetz Guru Join Date: Oct 2007 Location: Madrid, Spain Posts: 716 Good Answers: 25	#6 In reply to #4 Re: Wire Gauge 11/21/2008 5:34 AM
	When I opened the thread to answer I couldn't add anything. That bloody time delay... GA. __________________ It's stupid to discuss about AI: We´ve reached by the "B" way. We' ve producing men as clever as machines.
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babybear Guru Join Date: Jun 2008 Location: USA/Europe Posts: 4547 Good Answers: 68	#9 In reply to #6 Re: Wire Gauge 11/21/2008 11:57 AM
	Hello Kwetz: By the time delay do you mean the time it took to scroll down the page after the mile long post of mine To you and the others who left a GA, my profound thanks! What a bunch of gentlemen you are __________________ Take it easy, bb. >"HEAR & you FORGET<>SEE & you REMEMBER<>DO & you UNDERSTAND"<=$=\|O\|=$=>"Common Sense is Genius dressed in its Working Clothes"<>[Ralph Waldo Emerson]
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Kwetz Guru Join Date: Oct 2007 Location: Madrid, Spain Posts: 716 Good Answers: 25	#13 In reply to #9 Re: Wire Gauge 11/22/2008 10:38 AM
	Hello babybear, By time delay I mean the time elapsed from the thread is posted till I receive it. Sometimes, I've been the original poster and I've receive notifications of some answers before the daily digest in which has been included. Reason? I don't know, maybe I should post a thread in "Software and programming section". And regarding the time it took to scroll down the page after the mile long post of mine... I'm one of the fastest scrolling guys of this side of the ~~Mississippi~~ pond. Kind regards __________________ It's stupid to discuss about AI: We´ve reached by the "B" way. We' ve producing men as clever as machines.
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babybear Guru Join Date: Jun 2008 Location: USA/Europe Posts: 4547 Good Answers: 68	#14 In reply to #13 Re: Wire Gauge 11/22/2008 12:07 PM
	Hello Kwetz: Ok no probs. As always, ours is not to wonder why, ours is to do....... or die! Take care my friend.................. Tank you for the post OK. __________________ Take it easy, bb. >"HEAR & you FORGET<>SEE & you REMEMBER<>DO & you UNDERSTAND"<=$=\|O\|=$=>"Common Sense is Genius dressed in its Working Clothes"<>[Ralph Waldo Emerson]
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Anonymous Poster	#7 In reply to #4 Re: Wire Gauge 11/21/2008 8:46 AM
	so what size is the shot in a 12 gauge shotgun shell??
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Anonymous Poster	#8 In reply to #7 Re: Wire Gauge 11/21/2008 9:29 AM
	Gage in shotguns is a different matter entirely. In shotguns the gage is the bore size. If I can express this properly a 12 GA bore is a bore size for which 12 balls (spheres) of lead of that diameter will weigh 1 lb. 20 gage means that 20 balls that size will weigh 1 lb. 16 ga... so for shotguns larger gage numbers mean smaller bore. The one exception is the 410 which is .41 inch bore. The shot size or size of projectile is another matter shot guns fire shot which is traditionally many small lead balls with each shot ranging from #9 which is about the size of the head on a straight pin to BB size (0.17 inch) or even larger some even use rifled slugs which are roughly cylindrical and fir the bore with little webs which impart a spin to the slug...
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babybear Guru Join Date: Jun 2008 Location: USA/Europe Posts: 4547 Good Answers: 68	#11 In reply to #8 Re: Wire Gauge 11/22/2008 12:53 AM
	Hello Guest, I have not been able to reply from this site for nearly nine hours. Now I can. I can confirm, as you already knew, your explanation about lead shot I think it was that you answered, is spot on. It is off topic but only just so a GA is coming to you. Many thanks! __________________ Take it easy, bb. >"HEAR & you FORGET<>SEE & you REMEMBER<>DO & you UNDERSTAND"<=$=\|O\|=$=>"Common Sense is Genius dressed in its Working Clothes"<>[Ralph Waldo Emerson]
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elkangorito Commentator Join Date: Nov 2008 Location: S.E. Asia Posts: 91 Good Answers: 1	#12 Re: Wire Gauge 11/22/2008 8:17 AM
	Thank god for the Metric System __________________ "If you try to keep a leg each side of a barbed-wire fence, you'll do yourself a mischief." - Joh Bjelke-Petersen.
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babybear Guru Join Date: Jun 2008 Location: USA/Europe Posts: 4547 Good Answers: 68	#15 In reply to #12 Re: Wire Gauge 11/22/2008 12:30 PM
	Hello elkangorito: Absolutely, thank the French, for the Metric system. But, as long as you are working using one system, the comparisons are obvious. It is when trying to compare the different standards it gets tricky! There can often be a situation where you get two different gauges which are the same strength. That is because some is annealed, and treated in other ways which alter its strength and flexibility and braking point. I think that is why there is so many gauges which at first sight seems to be unnecessary? Take care........... __________________ Take it easy, bb. >"HEAR & you FORGET<>SEE & you REMEMBER<>DO & you UNDERSTAND"<=$=\|O\|=$=>"Common Sense is Genius dressed in its Working Clothes"<>[Ralph Waldo Emerson]
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#4 "Re: Wire Gauge" by babybear on 11/21/2008 2:51 AM (score 6)

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Users who posted comments:

Anonymous Poster (3); babybear (6); bhankiii (1); elkangorito (1); Kwetz (2); Nigh (1); RVZ717 (1)

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