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What Is The Diameter Of 1 Inch? [Solved]
Well, if you’re looking for the diameter of a pipe, here ya go! The nominal DN (mm) is the same as the nominal pipe size NPS (inches). So, if you’ve got a 2" pipe, it’s got a diameter of 1.660 inches (42.16 mm). And if you’ve got a 4" pipe, it’s got a diameter of 1.900 inches (48.26 mm). Easy peasy!
