Imperial Sizes
Diameter (in)	kg/m
3/16	0.14
1/4	0.249
5/16	0.389
3/8	0.56
1/2	0.944
5/8	1.55
3/4	2.24
7/8	3.05
1	3.98
1 1/6	4.49
1 1/8	5.04
1 3/16	5.61
1 1/4	6.22
1 3/8	7.52
1 1/2	8.95
1 5/8	10.15
1 3/4	12.18
1 7/8	13.49
2	15.91
2 1/8	17.96
2 1/4	20.14
2 3/8	22.44
2 1/2	24.8
2 5/8	27.4
2 3/4	30.08
2 7/8	32.88
3	35.8
3 1/4	42.01
3 3/8	42.27
3 1/2	48.73
3 1/4	55.94
4	63.69
4 1/4	71.85
4 1/2	80.55
5	99.44
5 1/4	109.6
5 1/2	120.3
5 3/4	131.51
6	143.2

Metric Sizes
Diameter (mm)	kg/m
3	0.050
6	0.222
8	0.395
10	0.617
12	0.888
16	1.578
20	2.470
22	2.980
25	3.853
28	4.830
30	5.550
32	6.310
35	7.530
36	7.990
38	8.900
40	9.870
45	12.480
50	15.140
55	18.650
58	20.740
60	22.200
65	26.050
70	30.210
75	34.680
80	39.460
90	49.940
100	61.650
110	74.600
120	88.780
125	96.330
140	120.800
150	138.700
160	167.840