PIPE CHART ( OUTSIDE WALL DIAMETER )
ACTUAL OUTER DIAMETER ACTUAL OUTER DIAMETER ACTUAL OUTER DIAMETER
FRACTIONAL INCHSIZE   ACTUAL OUTSIDE DIAMETER
1/8″ = .125″
1/4″ = .250″
3/8″ = .375″
1/2″ = .500″
3/4″ = .750″
1″ = 1.000″
1 1/4″ = 1.25″
1 1/2″ = 1.500″
2″ = 2.000″
2 1/2″ = 2.500″
3″ = 3.000″
3 1/2″ = 3.500″
4″ = 4.000″
4 1/2″ = 4.500″
5″ = 5.000″
6″ = 6.000″
THIN WALL INCH SIZE (E.M.T.)   ACTUAL OUTSIDE DIAMETER
     
     
     
1/2″ = .706″
3/4″ = .922″
1″ = 1.163″
1 1/4″ = 1.503″
1 1/2″ = 1.738″
2″ = 2.195″
2 1/2″ = 2.875″
3″ = 3.500″
3 1/2″ = 4.000″
4″ = 4.500″
     
     
     
HEAVY WALL INCH SIZE & PIPE(RIGID)   ACTUAL OUTSIDE DIAMETER
1/8″ = .405″
1/4″ = .540″
3/8″ = .675″
1/2″ = .840″
3/4″ = 1.050″
1″ = 1.315″
1 1/4″ = 1.660″
1 1/2″ = 1.900″
2″ = 2.375″
2 1/2″ = 2.875″
3″ = 3.500″
3 1/2″ = 4.000″
4″ = 4.500″
4 1/2″ = 5.000″
5″ = 5.563″
6″ = 6.625″