Total Project Solutions

SWG-AWG Wire Weight-Resistance Calculator
Enter the values* then press the button:
Running Weight (g/m)
Resistance (ohm/m)
Total Weight (g)

  Total Length = 
  Resistance   =

*Helpful Charts

Untinned copper wires
Stranded tinned copper wires
SWG to AWG Conversion

American Wire Gauge

Untinned copper wires

AWG standard notation	Nominal diameter		Cross-section area, mm X mm	Running weight		Running resistance
AWG standard notation	mm	inch	Cross-section area, mm X mm	g/m	lb/1000 ft	ohm/m	ohm/1000 ft
10	2.600	0.1024	5.309	46.77	31.43	0.0033	0.999
11	2.300	0.0906	4.155	37.09	24.92	0.0041	1.260
12	2.050	0.0807	3.301	29.42	19.77	0.0052	1.588
13	1.830	0.0720	2.630	23.33	15.68	0.0066	2.003
14	1.630	0.0642	2.087	18.50	12.43	0.0083	2.525
15	1.450	0.0571	1.651	14.67	9.858	0.0104	3.184
16	1.290	0.0508	1.307	11.63	7.818	0.0132	4.016
17	1.150	0.0453	1.039	9.23	6.200	0.0166	5.064
18	1.020	0.0402	0.817	7.32	4.917	0.0209	6.385
19	0.912	0.0359	0.653	5.80	3.899	0.026	8.051
20	0.813	0.0320	0.519	4.60	3.092	0.033	10.15
21	0.724	0.0285	0.412	3.65	2.452	0.042	12.80
22	0.643	0.0253	0.325	2.89	1.945	0.053	16.14
23	0.574	0.0226	0.259	2.29	1.542	0.067	20.36
24	0.511	0.0201	0.205	1.82	1.223	0.084	25.67
25	0.455	0.0179	0.163	1.44	0.9699	0.106	32.37
26	0.404	0.0159	0.128	1.14	0.7692	0.134	40.81
27	0.361	0.0142	0.102	0.908	0.6100	0.169	51.47
28	0.320	0.0126	0.080	0.720	0.4837	0.213	64.90
29	0.287	0.0113	0.065	0.571	0.3836	0.268	81.83
30	0.254	0.0100	0.051	0.453	0.3042	0.339	103.2
31	0.226	0.0089	0.040	0.359	0.2413	0.427	130.1
32	0.203	0.0080	0.032	0.285	0.1913	0.538	164.1
33	0.180	0.0071	0.025	0.226	0.1517	0.679	206.9
34	0.160	0.0063	0.020	0.179	0.1203	0.856	260.9
35	0.142	0.0056	0.016	0.142	0.09542	1.086	331.0
36	0.127	0.0050	0.013	0.113	0.07568	1.361	414.8
37	0.114	0.0045	0.010	0.091	0.06130	1.680	512.1
38	0.102	0.0040	0.008	0.071	0.04759	2.128	648.6
39	0.089	0.0035	0.006	0.056	0.03774	2.781	847.8
40	0.079	0.0031	0.005	0.045	0.02993	3.543	1080.0
AWG standard notation	mm	inch	Cross-section area mm X mm	g/m	lb/1000 ft	ohm/m	ohm/1000 ft
AWG standard notation	Nominal diameter		Cross-section area mm X mm	Running weight		Running resistance

Adjusted average wire diameter is calculated from the formula, as follows:

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Updated on: Friday, 27 January 2006