To determine the theoretical weight of a coil, measure the ID and OD of the coil. Determine the PIW from the chart on the right. Then multiply the PIW by the width of the coil in inches. For an interactive PIW Calculator click here.

Used for information only – not accurate in determining functionality.

Outer Diameter 16" Inside Diameter weight per inch 20" Inside Diameter
weight per inch
22" 51 19
23" 61 29
24" 72 40
25" 83 50
26" 94 62
27" 106 74
28" 119 86
29" 132 99
30" 145 112
31" 158 125
32" 172 140
33" 186 154
34" 202 169
35" 217 185
36" 233 201
37" 250 217
38" 266 234
39" 283 251
40" 302 269
41" 320 287
42" 338 306
43" 357 325
44" 376 344
45" 396 364
46" 417 384
47" 438 405
48" 459 426
49" 480 448
50" 503 471
51" 525 493
52" 548 516
53" 572 540
54" 596 560
55" 616 584
56" 640 609
57" 666 634
58" 690 659
59" 717 685
60" 744 711
61" 771 739
62" 799 766
63" 826 794
64" 854 822
65" 883 851
66" 912 880
67" 942 910
68" 972 940
69" 1003 970
70" 1034 1001