Diameter conversion according to various standards - EN - Cromo Stal

DN	ISO [mm]	CAL	DIN [mm]	METER [mm]	DIN 11850 [mm]	SMS [mm]
6	10,0	1/8''
8	13,5	¼''
10	17,2	3/8''	14,0	10,0	10,0
15	21,3	½''	20,0	18,0	18,0
20	26,9	¾''	25,0	23,0	22,0
25	33,7	1''	30,0	28,0	28,0	25,0
32	42,4	1 ¼''	38,0	35,0	34,0	32,0
40	48,3	1 ½''	44,5	43,0	40,0	38,0
50	60,3	2''	57,0	54,0	52,0	51,0
63						63,5
76						76,1
65	76,1	2 ½''	76,1	69,0	70,0
80	88,9	3''	88,9	84,0	85,0
100	114,3	4''	108,0	104,0	104,0	101,6
125	139,7	5''	133,0	129,0	129,0	129,0
150	168,3	6''	159,0	154,0	154,0
200	219,1	8''	216,0	2074,0	204,0
250	273,0	10''	267,0	254,0	254,0
300	323,9	12''	318,0	304,0	304,0
350	355,6	14''	368,0	354,0	354,0
400	406,4	16''	419,0
450	457,2	18''	459,0
500	508,0	20''	521,0
600	609,6	24''	622,0
700	711,2	28''	720,0
800	812,8	32''	820,0
900	914,4	36''	920,0
1000	1016,0	40''	1020,0