Sizes chart for BWG Size Manufacture in china

Table. principal BWG sizes
Outside Diameter			20	18	16	15	14	13	12	11	10
Outside Diameter			(0.89mm)	(1.26mm)	(1.65mm)	(1.83mm)	(2.11mm)	(2.41mm)	2.77mm)	(3.05mm)	(3.40mm)
in		mm	Standard Wire Gauge (BWG)/Weight, kg/m(average wall1)
1/4	0.25	6.35	0.12	0.16	0.19
5/16	0.31	7.95	0.15	0.21	0.25	0.28
3/8	0.38	9.53	0.19	0.25	0.31	0.34	0.39
1/2	0.50	12.70	0.25	0.34	0.45	0.49	0.55	0.61	0.68	0.72
5/8	0.63	15.88	0.33	0.45	0.58	0.64	0.71	0.8	0.89	0.97
3/4	0.75	19.05	0.4	0.55	0.72	0.77	0.88	0.98	1.12	1.2	1.31
7/8	0.88	22.23	0.46	0.64	0.83	0.92	1.04	1.18	1.32	1.44	1.58
1	1.00	25.40	0.54	0.74	0.97	1.06	1.21	1.37	1.55	1.68	1.92
11/8	1.13	28.58	0.61	0.83	1.1	1.21	1.37	1.56	1.76	1.92	2.11
11/4	1.25	31.75	0.68	0.94	1.23	1.35	1.53	1.76	1.96	2.16	2.4
13/8	1.38	34.93	0.74	1.03	1.35	1.49	1.7	1.93	2.19	2.4	2.65
11/2	1.50	38.10	0.82	1.13	1.49	1.64	1.87	2.17	2.4	2.63	2.92
13/4	1.75	44.45	0.97	1.32	1.74	1.92	2.2	2.5	2.84	3.1	3.44
2	2.00	50.80		1.52	1.99	2.2	2.53	2.89	3.27	3.59	3.97

21/4	2.25	57.15		1.73	2.26	2.48	2.87	3.26	3.7	4.06	4.51
23/8	2.38	60.33		1.81	2.38	2.63	3.02	3.44	3.93	4.3	4.78
21/2	2.50	63.50		1.91	2.52	2.78	3.18	3.66	4.14	4.54	5.04
27/8	2.88	73.03		2.2	2.9	3.2	3.68	4.2	4.79	5.25	5.83
3	3.00	76.20		2.31	3.04	3.35	3.85	4.39	5	5.49	6.1
31/2	3.50	88.90		2.69	3.56	3.93	4.51	5.15	5.86	6.44	7.17
4	4.00	101.60			4.11	4.54	5.21	5.95	6.8	7.47	8.3
Notes Conventional weights are quoted, assuming the tube is specified as average wall. Add 10% to the weight for minimum wall tube. Multiply quoted weights by 1.014 for austenitic and duplex steels, by 0.985 for ferritic and martensitic steels.

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