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Chain Number Conversion Chart

You can view the Chain Number Conversion Chart below or download it using the download link at the bottom of the page.

Handy Links for all chain types under the Oregon chain column.

Pitch Guage Oregon Chain Carlton McCulloch Stihl Windsor Husqvarna EM Dolmar Tri-Link
1/4" 0.050" (1.3mm) 25 E1, K1NK 13RM   50K H00 S00    
325 0.050" (1.3mm) 20 K1C, K1L PM320, SPR320,
23 50J H22, H23   82 2B, 7B
325 0.050" (1.3mm) 95         H30 S30    
325 0.058" (1.5mm) 21 K2 SPR328,
25 58J H25, H21 S212 083, 686 2C, 7C
325 0.063" (1.6mm) 22 K3
26 63J H28, H26 S28   2D, 7D
3/8" 0.050" (1.3mm) 72 A1 PM370, SPR370
33R 50A H51, H47, H46 S46 100 3B, 8B
3/8" 0.058" (1.5mm) 73 A2 SPR378
35R 58A H42, H48, H49, H52 S48, S49, S52 99 3C, 8C
3/8" 0.063" (1.6mm) 75 A3 PM373, SPR373 36R, 33R 63A H44, H45, H53 S45, S53 110 3D, 8D
3/8" 0.043" (1.1mm) 90 N4   61PMN 43RG       1A
3/8" 0.050" (1.3mm) 91 N1 M370 63PM 50R H35, H36 S36 92 1B
404 0.063" (1.6mm) 59 B3S PM403, SPR403 46RS 63B H57, H64, H65 S64, S65 103, 108 4D

Download Chain Number Conversion Chart using the link below:

Chain Number Conversion Chart