HDPE Thermoplastic pipe sizes IPS DIPS mm Chart Conversion - Knowledge

American Standard Size Nominal Pipe Size IPS (Known as) (Inches)	Real Size Outside Diameter (OD) (Inches)	Real Outside Diameter (OD) (mm) 1 Inch = 25,4 mm	Closer Metric Pipe size or (mm) (NOT THE SAME)
1/2″ IPS	0,84″	21,34 mm	20 mm
3/4″ IPS	1,05″	26,67 mm	25 mm
1″ IPS	1,32″	33,40 mm	32 mm
1-1/4″ IPS	1,66″	42,16 mm	40 mm
1-1/2″ IPS	1,90″	48,26 mm	50 mm
2″ IPS	2,38″	60,33 mm	63 mm
2-1/2″ IPS	2,87″	72,90 mm	75 mm
3″ IPS	3,50″	88,90 mm	90 mm
4″ IPS	4,50″	114,30 mm	110 mm
5″ IPS	5,56″	141,22 mm	140 mm
6″ IPS	6,63″	168,28 mm	160 mm
7″ IPS	7,13″	180,98 mm	180 mm
8″ IPS	8,63″	219,08 mm	200 mm
10″ IPS	10,75″	273,05 mm	250 mm
12″ IPS	12,75″	323,85 mm	315 mm
14″ IPS	14,00″	355,60 mm	355 mm
16″ IPS	16,00″	406,40 mm	400 mm
18″ IPS	18,00″	457,20 mm	450 mm
20″ IPS	20,00″	508,00 mm	500 mm
22″ IPS	22,00″	558,80 mm	550 mm
24″ IPS	24,00″	609,60 mm	600 mm
25″ IPS	25,00″	630,00 mm	630 mm
28″ IPS	28,00″	711,20 mm	700 mm
30″ IPS	30,00″	762,00 mm	750 mm
32″ IPS	32,00″	812,80 mm	800 mm
36″ IPS	36,00″	914,40 mm	900 mm
42″ IPS	42,00″	1066,80 mm	1000 mm
48″ IPS	48,00″	1219,20 mm	1200 mm

DIPS PIPE SIZE (INCHES)

(Ductile Iron Pipe Size based)

Nominal Pipe Size DIPS (Known as) (Inches)	Real Size Outside Diameter (OD) (Inches)	Real Outside Diameter (OD) (mm) 1 Inch = 25,4 mm
3″ DIPS	3,96 mm	100,584 mm
4″ DIPS	4,8 mm	121,92 mm
6″ DIPS	6,9 mm	175,26 mm
8″ DIPS	9,05 mm	229,87 mm
10″ DIPS	11,1 mm	281,94 mm
12″ DIPS	13,2 mm	335,28 mm
14″ DIPS	15,3 mm	388,62 mm
16″ DIPS	17,4 mm	441,96 mm
18″ DIPS	19,5 mm	495,3 mm
20″ DIPS	21,6 mm	548,64 mm
24″ DIPS	25,8 mm	655,32 mm
30″ DIPS	32 mm	812,8 mm
36″ DIPS	38,3 mm	972,82 mm
42″ DIPS	44,5 mm	1130,3 mm
48″ DIPS	50,8 mm	1290,32 mm