Pipe Size Metric Conversions

PIPE SIZE METRIC CONVERSION TABLE
DIAMETER
NOMINAL SIZE		OD
mm	Inches	mm	Inches
3	1/8	10.3	.405
6	1/4	13.7	.540
10	3/8	17.1	.675
13	1/2	21.3	.840
19	3/4	26.7	1.050
25	1	33.4	1.315

32	1 1/4	42.2	1.660
40	1 1/2	48.3	1.900
50	2	60.3	2.375
65	2 1/2	73.0	2.875
80	3	88.9	3.500
90	3 1/2	101.6	4.000

100	4	114.3	4.500
125	5	141.3	5.563
150	6	168.3	6.625
200	8	219.1	8.625
250	10	273.0	10.750
300	12	323.8	12.750

350	14	355.6	14.000
400	16	406.4	16.000
460	18	457.2	18.000
510	20	508.0	20.000
560	22	558.8	22.000
610	24	609.6	24.000
660	26	660.4	26.000