Are there any wire SWG to OD conversion formulae progs around, or even the basic equation and I'll get my calculator out? Thanks!
Wire guage to diameter conversion formulae?
Dec 05, 2003
4 Replies
here's one from googling 'wire gauge chart'
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As far as I know there is no simple conversion formula. Wire and sheet gauges, for the most part, are based on things like length per given weight or sometimes just a sequential numbering of holes in a draw plate.
It seems confusing now, but probably made perfect sense when the standards developed.
Paul K. Dickman
This is the formula for AWG:
diameter = 0.0050*(92)^((36-AWG)/39)
Best regards, Spehro Pefhany
Free program download at
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