Pipe Size Metric Conversions

PIPE SIZE METRIC CONVERSION TABLE
DIAMETER
NOMINAL SIZE OD
mm Inches mm Inches
31/8 10.3.405
61/4 13.7.540
103/8 17.1.675
131/2 21.3.840
193/4 26.71.050
251 33.41.315
     
321 1/4 42.21.660
401 1/2 48.31.900
502 60.32.375
652 1/2 73.02.875
803 88.93.500
903 1/2 101.64.000
     
1004 114.34.500
1255 141.35.563
1506 168.36.625
2008 219.18.625
25010 273.010.750
30012 323.812.750
     
35014 355.614.000
40016 406.416.000
46018 457.218.000
51020 508.020.000
56022 558.822.000
61024 609.624.000
66026 660.426.000