5/8 Inch Outside Diameter x 5 Ft. Long, Copper Round Tube Price For: Each Material: Copper Outside Diameter (Inch): 5/8 Outside Diameter (Decimal Inch): 0.6250 Wall Thickness (Decimal Inch): 0.0400 Inside Diameter (Inch): 1/2 Length (Feet): 5 Length (Inch): 60 Alloy Type: 122 Additional Information: Inside Diameter (Inch) value is nominal size. Inside Diameter (Decimal Inch): 0.5450